Relatively few complain about Toyota

by Administrator 12. February 2010 12:47

NEW YORK (CNNMoney.com) -- Despite a torrent of high-profile recalls that have tarnished Toyota's once stellar reputation, a study published Wednesday reveals that the automaker actually gets fewer customer complaints per car than the majority of its competitors.


image

Edmunds.com reviewed more than 200,000 complaints filed with the National Highway Traffic Safety Administration (NHTSA) over the last decade and found that Toyota ranked 17th among the top 20 automakers in the overall number of complaints per vehicle sold.


The results come amid a series of recalls totaling more than 8.1 million Toyotas worldwide, including 400,000 of the popular 2010 Prius hybrid for problems associated with sticking brake pedals, software glitches and faulty floormats.


The study was based on the percentage of complaints each automaker received versus the total number of vehicles they sold in the United States between 2001 and 2010.



As a result, British carmaker Land Rover had the highest proportion of complaints relative to the number of cars it sold. The company received 0.6% of the total complaints in the database, while its sales amounted to only 0.1% of all new cars sold in the United States.


Meanwhile, Toyota had 9.1% of all the complaints in the database. But the company was number 17 on the list because its sales made up 13.5% of the U.S. market.


According to the study, Toyota had fewer complaints than its American rivals. Ford was number 10 on the list, while General Motors came in at number 11.


The only automakers to receive fewer complaints than Toyota were Mercedes-Benz, Porsche and the Mercedes-made Smart Car.


Among the other automakers that ranked high on the list were Suzuki and Isuzu, which came in at numbers 2 and 3 respectively. German automaker Volkswagen came in at number 4.


The complaints lodged against Toyota ranged from minor problems with lighting to more serious issues such as sudden acceleration and difficulty steering. But the study did not rate the reported incidences for severity.


Edmunds.com said that it found some unreliable reports in the database, including one complaint indicating that 99 people had died in one vehicle as a result of an accident. It also said that about 10% of the complaints appeared to be duplicates.


Quality control: Not just Toyota's problem

While the issues raised by Toyota's recent recalls shouldn't be overlooked, quality control concerns are apparent across the entire automobile industry, said Jeremy Anwyl, Edmunds.com chief executive.


"A broader view shows that consumer complaints reflect an industry issue, not just a Toyota issue," said Anwyl. "It is no longer an option for car companies to dismiss consumer complaints, even if the event is difficult to replicate or diagnose."


Some automakers assume that customer complaints are the result of driver error and not necessarily a reflection of design problems, said Jeannine Fallon, an Edmunds.com analyst.


"It depends on the culture of the car company," she said. "But it's clear now that Toyota has not had very many conversations with NHTSA."

 

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Becoming an Automotive Technician

by Administrator 9. October 2009 07:54

Millions of drivers rely on their vehicles in order to get to school, work and other places. Automotive mechanics are integral in keeping a costly investment from turning into a costly mistake. Mechanics keep engines and car parts from failing. They are also important in extending the lives of car parts and engines with routine and scheduled maintenance.

With the number of drivers out on the road, there is a high demand for skilled and professional automotive mechanics. Formal training programs are important and useful for those interested in the field. Automotive service technician training programs may be offered by high schools, community colleges, or vocational and technical schools.

Associate Degree- Automotive Maintenance Technology

If you enjoy cars, working with your hands, and solving problems, a career as an automotive technician may be for you. The first step on the career path is to get formal training in the field. An Associate Degree in Automotive Maintenance Technology will provide the skills and knowledge necessary to be successful in the automotive field.

Automotive Technology Certificate

The Automotive Technology Certificate gives students practical, hands-on training in the complex automobile industry using computerized and traditional tools to troubleshoot car and engine problems. Students become knowledgeable about vehicles from various car and light truck manufacturers and learn to fix electronic, engine and brake systems.

Mechanic and Repair Technologies

Industry and performance standards are on the rise and with progressive reliance on technology, commerce has dictated a need for individuals able to maintain electronics, machinery and other complex systems. Without knowledge of circuit and machine technology, success is increasingly difficult in this constantly evolving industry. Technology is also advancing and creating new and more efficient methods of repairing mechanical systems making certification an absolute necessity. Students interested in mechanic and repair technologies will be subject to comprehensive testing, as well as hands-on training to ensure they join the work force as competent professionals.

Automotive and Commercial Technology Certificate Programs

Positions in trucking companies, repair shops and mass transit systems are available to those with education in specific areas. An automotive technology certificate program will teach students about diagnosing, repairing and maintaining engines in cars, buses, trucks and heavy equipment. Automotive, diesel and industrial technician certificate programs are one to two year programs that give students theoretical knowledge of engines with hands-on maintenance experience using computerized tools. Students will install parts, weld exhaust systems and become experts in maintenance issues for automotive and commercial transportation vehicles and equipment.

Auto Tech Coursework:

• Introduction to Automotive Technology
• Brakes and Suspension
• Vehicle Inspections
• Basic Diesel Engine Tune-Up and Troubleshooting
• Diesel Electronics Systems
• Diagnostic Strategies
• Repairing Diesel Engines
• Power Trains
Skills Acquired

Graduates of Automotive Technology, Diesel and Industrial Technician Certificate programs will be proficient in;

• diagnosing and servicing automobiles
• heavy duty trucks and equipment
• keeping fleet logs
• repairing fuel systems
• testing engines.

Courses in computer science and communication will enhance career options and can lead to management positions.

Job Outlook and Salary Information

Nearly every industry relies on vehicles, trucks and heavy equipment to transport products to consumers. Most diesel technicians work in the trucking industry and steady employment is common. The National Institute of Automotive Service Excellence is just one entity offering certifications for diesel service technicians as heavy truck technicians, master school bus technicians and in components of repairing trucks including diesel engines, electronic systems and inspection. Diesel and industrial technicians may seek employment as diesel and heavy equipment technicians, fleet maintenance technicians or engine specialists. According to the United States Bureau of Labor Statistics (BLS), www.bls.gov  , median annual salaries for diesel technicians and mechanics were $37,232 in 2004.

 

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Reasons Your AC Won't Cool | AC Stopped Working

by Administrator 28. September 2009 10:26

Air conditioning is the process by which air is cooled and dehumidified. Basically, air conditioning systems operate on the principles of evaporation and condensation. The principles of evaporation and condensation are utilized in your car's A/C system by a series of components that are connected by tubing and hoses.

 

caracpic

There are six basic components:

• compressor
• condenser
• receiver-drier
• thermostatic expansion valve
• evaporator
• refrigerant

Freon

Freon is a gas and liquid combination that is compressed and circulated throughout the air conditioning system. The compressed Freon is pushed through the system under pressure and is passed through different sized metal and rubber hoses and a special valve called an expansion valve that cause the gas to expand and contract.

Idling Issues

A few causes of low cooling efficiency or no cooling at all at idle are:

Lack of air flow across the condenser. Make sure the electric cooling fan motor near the condenser is coming on, or in models that are equipped with a fan blade make sure this fan is turning and is turning very fast.
Low Freon levels. Freon level and pressure should be checked by your certified air conditioning mechanic.
Overheating. If the engine is running hot or overheating, it can have a noticeable negative affect on the air conditioning system. Some cars have two electric cooling fans, one for the air conditioning condenser and the other for the radiator. Make sure they are both working properly. Usually at idle on a hot day with the AC on both fans will be on.

On the Freeway

When the vehicle is traveling at freeway speeds, the compressor is pumping the Freon throughout the system much faster and harder than at idle. There is a dramatic increase in air flow across the condenser due to 55 mph winds, and the engine is usually operating at a cooler, more efficient temperature as well, thus allowing the air conditioning system to operate efficiently. An air conditioning system that is somewhat low on Freon can still feel comfortable at freeway speeds due to the added air flow across the condenser which can overcome the ill effects of slightly low Freon.

No Cool Air

• Loose or broken drive belt
• Inoperative compressor or slipping compressor clutch
• Defective expansion valve
• Clogged expansion valve, receiver-drier or liquid refrigerant line
• Blown fuse
• Leaking component: any of the parts listed above or one of the A/C lines, hoses or seals

Insufficient Cool Air

• Low refrigerant charge
• Loose drive belt
• Slipping compressor clutch
• Clogged condenser
• Clogged evaporator
• Slow leak in system
• Partially clogged filter or expansion valve

There are a couple things you can do, however.

Have the system checked regularly according to your vehicle's service manual.  Get one here

If you live in a place with a cold climate, it might not make much sense to run the A/C during the winter months, but many shop technicians recommend running your A/C system regularly, because it contains a light mineral oil in the refrigerant to keep the compressor properly lubricated. The general rule of thumb is 10 minutes per month. Some heating, ventilation and air conditioning systems also engage the A/C compressor for defrost mode. Recharging refrigerant requires special equipment found at A/C repair shops.

 

 

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Do it yourself car repair? | Preventive Maintenance

What do they check when performing a 100-point checklist?

by Administrator 25. September 2009 07:34

fhc

Car Body Inspection

1 Door seams- even and straight
2 Fender seams- even and straight
3 Hood and fender seams- even and straight
4 Trunk and fenders seams- even and straight
5 Body panel repair check- body repair indications
6 Fender repair check- fender repair indications
7 Door repair check- door repair indication
8 Rocker panel check- rocker panel repair indication
9 Consistent paint color check
10 Repaint check- overall vehicle
11 Overspray check- moldings
12 Overspray check- door edges
13 Overspray check- hood
14 Overspray check- trunk

Tire Inspection

15 Consistent 4 tire tread check
16 4 tire size check
17 4 tire brand check
18 Spare tire check
19 Tire jack check
20 Tire lug wrench check
21 Locking hubcap removal key check
22 Spare tire inflation check

Suspension Inspection

23 Level vehicle check
24 Shock absorber check
25 Noise check on vehicle corners

Frame Inspection

26 Frame straightening check
27 Trunk interior
28 Wheel well interiors
29 Hood interior
30 Frame outer edge
28 Check for scratched or recently cleaned areas

Gas Cap and Filler Neck Inspection

29 Gas cap check- correct fit, key
30 Interior gas cap- filler neck, leaded fuel restrictor

Interior Inspection

31 Upholstery check
32 Upholstery tears
33 Upholstery stains
34 Upholstery burns
35 Dashboard check
36 Headliner check
37 Seats adjustment check
38 Missing window cranks, door locks, handles, dash controls
39 Interior light check
40 Dash bulb check
41 Carpet condition check and match
42 Water damage check- mildew
43 Under dash carpet check- heater core or air conditioner leak

Car Accessories Inspection

44 Accessory operation test
45 Air conditioner- quick response and proper temperature
46 Heater- quick response and proper temperature
47 Alarm system function
48 GPS function
49 Audio system check-speakers

Engine Compartment Inspection

50 Oil and fluid leaks check
51 Full operating temperature check
52 Smell check- leaking fluids on hot engine parts
53 Noise check- clattering, metallic, hissing
54 Missing parts check
55 Removed parts check

Under the Vehicle Inspection

56 Fluid leak check. Green antifreeze, reddish power steering or transmission fluid, dark brown or black fluid oil or brake fluid.
57 Transmission underside check
58 Axle ends check
59 Engine underside check
60 Brake line connections check
61 Ground check- fluid leak beneath the vehicle
62 Loose parts
63 Missing parts- bolts, clamps, brackets or cables
64 Rusty exhaust system parts
65 Bottomed out check- scrapes
66 Exhaust check-normal temperature
67 Smoke check-White or blue and black smoke

Engine Inspection

68 Engine start check
69 Engine stall check
70 Engine idle check
71 Engine idle speed check
72 Engine acceleration hesitation
73 Engine smooth operation check
74 Engine power check
75 Cruise control check
76 Engine system warning lights check
77 Engine dieseling check

Transmission and Clutch Inspection

78 Smooth automatic shifting check
79 Smooth manual-shift
80 Smooth take-off without grabbing or jerking
81 Hard acceleration in third or fourth gear
82 Hard acceleration while going uphill
83 Clutch Slippage Check- Rise in engine RPMs without a equal increase in vehicle speed
84 Low gear manual-shift check

4-Wheel Drive Inspection

85 4-wheel drive Forward and reverse check
86 Tight corner check- noises
87 Tight corner check- wheels bind or pull
88 Straight drive check- wheels bind or pull

Brake Inspection

89 Brake check- various speeds
90 Brake check- sudden stop check
91 Brake check- pull to one side
92 Brakes stop check
93 ABS check- sudden stop capability
94 Wheel lock check
95 Parking brake hold and release check

Steering Inspection

96 Steering check- vehicle pull to one side
97 Steering check- stiff
98 Steering check- sharp turn- noises, rubbing, binding
99 Steering check- shake or vibration at higher speeds
100 Steering wheel check- centered

 

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Top Ten in New Car Technology

by Administrator 23. September 2009 11:11

There is no doubt that cars are getting smarter and more fun with the help of new tech. Conservative manufacturers are getting quicker about moving new gadgets and systems into our autos.

 

car-tech_1

Tech has become the cup holder of the 21st Century, helping set models apart from each other. Wading through the many options, AAA recently compiled its list of top car tech for 2009 and 2010 models:

MyKey. Introduced by Ford, MyKey employs a computer chip in the vehicle's ignition key to limit teen drivers to a top speed of 80 mph. Parents can also program the teen's key to limit audio system levels and sound a continuous alert if the driver doesn't wear a seatbelt. Another MyKey option is the ability to sound a chime if the teen driver exceeds 45, 55 or 65 mph. While this technology does not replace the need for parental involvement with teen drivers, MyKey can be a helpful tool when used in conjunction with AAA's driver training and parent-teen driving agreement.


MyKey will be introduced as a standard feature in the 2010 Ford Focus, Escape hybrid, and selected other vehicles before spreading to the entire Ford, Lincoln and Mercury lineup as models are updated.

Solar Roof Panels
. Some hybrid models now integrate solar roof panels into their designs, making this technology one of two environmentally-friendly features on AAA's top-10 list. The Karma luxury hybrid sedan, due out in November 2009 from American sports car company Fisker Automotive, will have a solar roof partitioned into four zones with 20 solar cells in series that convert sunlight into electrical energy. The power generated can be sent to the electric motors that drive the car, used to power the climate controls or stored for future use.


The 2010 Toyota Prius uses a solar roof to power a fan that circulates fresh air through the interior when the vehicle is parked. This keeps the passenger compartment cooler and reduces the load on the electrically powered air conditioning system the next time the car is driven.


Lane Departure Warning Systems. Though not new for 2009, the increased availability of lane departure warning systems is an important safety feature that earns this technology a spot on the list. These systems monitor a vehicle's path of travel, typically through tracking of lane markings, and sound an audible and/or tactile (through the steering wheel) alert when the vehicle drifts outside its lane. Some systems are able to provide corrective steering input in addition to sounding an alarm.


First introduced in North America by Infiniti, lane departure warning systems also are now available on selected new models from Cadillac, Lexus, BMW, Buick, Volvo, Audi and Mercedes Benz.

Blind Spot Warning Systems.
A few of today's new cars offer blind spot warning systems as an added safety feature. These systems monitor the areas at the rear sides of the vehicle that are often invisible in the mirrors. The systems provide a visual indication, usually on the applicable side mirror, when an obstacle is present in the monitored area. Mercedes Benz, Mazda, Volvo, Buick, Cadillac and Lincoln are among the manufacturers offering blind spot warning systems.


Driver Alertness Monitors. The dangers of drowsy driving are frequently overlooked by motorists, which earns driver alertness monitors a spot on AAA's top-tech list. Mercedes Benz will introduce the Attention Assist feature on select 2010 models to combat the threat of drivers falling asleep while at the wheel. Attention Assist monitors the driver's steering and throttle inputs, and when they vary too far from normal patterns a loud voice announces, "Attention Assist! Brake!" to alert the sleepy driver. Volvo began offering similar system called Driver Alert in 2008 and has it available on several upcoming models.


Though a great new technology, driver alertness monitors do not replace the need for a good night's sleep and knowing when it is time to stop and rest when traveling. Motorists should not view these monitors as an excuse to test their endurance behind the wheel.


Collision Preparation Systems. These systems are programmed to recognize situations that indicate an accident may be imminent, such as when the closing rate with the vehicle ahead exceeds a certain limit, the vehicle begins to skid or the driver initiates hard braking. Once triggered, collision preparation systems take steps to reduce the possibility of a collision while providing maximum protection for the vehicle occupants. Depending on the model, a collision preparation system may: tighten the seat belts, close open windows and sunroofs, lock the doors and apply the brakes. Acura, Lexus, Toyota, Volvo and Mercedes Benz are among the manufacturers that offer collision preparation systems.
Automatic Air Recirculation with Smog Sensor. Some Lexus models offer a unique feature on their climate control systems that automatically switches the ventilation system to recirculate when high levels of outside pollutants are detected in the cabin. The system reverts back to fresh-air intake once detectable levels of pollutants have been reduced.


The system's ability to detect dust, pollen, smoke and carbon dioxide make it a helpful feature in both urban and rural environments.


"Green" Driving Assistance. Several new hybrid models offer drivers a choice of operating modes that can help them obtain maximum fuel efficiency. A couple of manufacturers have gone a step farther and integrated visual cues into their instrument panel displays that help "teach" motorists how to drive more efficiently. In the Ford Fusion hybrid, a plant grows branches and leaves when the car is driven in a fuel efficient manner-and withers as economy goes down. The 2010 Honda Insight hybrid has a speedometer display that varies in color from blue to green as efficiency increases and offers guidance on braking techniques.


Ford and Honda have taken care in designing these displays to ensure they are not too distracting for drivers. The desire to obtain maximum fuel efficiency should never take away from drivers' awareness of their surroundings and the need for safe vehicle operation.


SplitView. Mercedes Benz's 2010 S-Class cars will debut a new display technology that allows the driver and passenger to see two totally separate programs from the same display. The driver can access navigation information, receive turn-by-turn directions and monitor various vehicle systems on the eight-inch screen, while the passenger can watch a DVD on the same screen at the same time without distracting the driver. The system allows the audio program on the passenger's side to be routed through headphones to further reduce distractions.


While an innovative technology, the SplitView system is most noteworthy as the first in-car video entertainment system for front-seat passengers that does not pose a distraction to the driver.


Enhanced Vehicle Stability Controls. The next item on AAA's list is not one technology, but rather a group of features that began with anti-lock brakes and has evolved into a wide range of electronic suspension controls that improve ride, handling and safety. Most cars today have some form of stability control that works to offset vehicle skids by using the anti-lock components to apply the brakes at selected wheels. Rollover control extends the operation of stability control into a third dimension to counteract the tendency of tall SUVs to tip over under extreme cornering. The latest enhancement to stability controls is towing sway control that detects cyclical side loadings on the vehicle and uses the ABS components to counteract trailer sway.


In a related area of stability, many highline vehicles now offer some form of active suspension control that provides real-time variable shock absorber damping to improve ride and handling. This is done through computer controlled shock absorbers that have electrically switched internal valving or use a special fluid that changes viscosity (thickness) when an electrical current is passed through it. BMW offers a further enhancement called Active Roll Stabilization that can uncouple the suspension's anti-roll bars for a smooth ride in a straight line, then selectively re-couple the bars as needed for optimum cornering performance. Most active suspensions also have a control that allows the driver to select between a number of modes that vary from comfort to performance.

[Source: Dave Lagesse www.usnews.com]

 

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Troubleshooting Car Electrical Problems

by Administrator 21. September 2009 19:22

Troubleshooting car electrical problems is a skill every dedicated car owner must possess.You need not run to the mechanic for minor problems. Car electrical troubleshooting is a simple and straightforward job. Read on to know more . .

carelectrical

Troubleshooting car electrical problems can be a lot of fun, if you are a do-it-yourself kind of a guy, who enjoys solving mysteries and is in love with his car! In order to fix car problems, you need not be an automobile engineer. For solving car electrical problems, all you need is a fundamental understanding of the Ohm's law and a detailed circuit diagram of your car's electrical circuitry. The electrical circuit network of a car, serves as the control and powering mechanism for all the working systems of the car. Let us understand how to diagnose and troubleshoot car electrical problems.


Car Electrical Troubleshooting Precautions
The typical voltage range in car electric circuitry is around 10-16 V. Therefore the likelihood of getting an electric shock is very less, unless you are tampering with the ignition assembly of any car or the battery system of a hybrid car. Refer to circuit diagram of electrical assembly before disconnecting any wire connections or making new ones. Check and keep track of the colors of the wires and keep in mind the important details of which one goes where! Disconnect the battery when replacing or removing any electrical components. This eliminates the risk of any components inadvertently being shorted and the PCM (Power train Control Module) of the car being damaged.


Diagnostic Principles and Tools of Car Electrical Troubleshooting
The diagnostic tools for troubleshooting car electrical problems are an ohmmeter to measure resistance, a voltmeter, both with attached leads and a discerning intellect! You may also use a 12 volt light tester for a quick check but its better to have a voltmeter to get accurate voltage readings.


The principles of diagnosing a car electric problem is the Ohm's law. Voltage is directly proportional to current for a solid conductor and the proportionality constant is the resistance of the circuit!


Remember that every device needs electric power for its functioning and there is a minimum threshold voltage, that is absolutely necessary for its operation. So the diagnostic method is simply measuring the voltages at various load points of the car. Load points are contact points where power is supplied to a load which could be the car light bulb, the windshield wiper, the ignition assembly or any other working car part, which is showing problems. Therefore, if the voltage levels at any of these points are abnormal, then you can be sure that there is a problem. Thus most car electrical problems are essentially low voltage problems, 'no voltage' problems, excess resistance problems or circuit discontinuity problems. In some cases the problem may also be, due to burning out of some components.


Troubleshooting
The first place to check for car electrical problems is the car battery. If the battery itself is not giving the required output voltage, then every component associated with it shows problems. So to check the battery output first, disconnect it from the car connections. The PCM may get reset and lose its programmed settings when the battery power is disconnected. So attach a 9 V battery to the PCM to avoid this.


Then measure the voltages between the output leads of the battery. If the voltage reading is equal to or in excess of 12.43 V, your battery is charged sufficiently enough and is working. If the voltage is around 12.66 volts, your battery is fully charged and you have no reason to worry. If it is less than 12.43 V, the the battery needs charging.


Next reconnect the battery and check voltage of load points of the car devices which are not working properly. If the voltage is zero or very low at a particular point, there are many possible case scenarios. One possibility is that the fuse that protects the device has burned out or secondly the relay that switches power to that part has stopped working. Check and replace these if you find them faulty. Next check the grounding at that point. A car circuitry is grounded in the metal body of the car itself. If the grounding is at fault, current conduction is not possible. If that is the problem, then fix it by grounding the terminal from that point.


If the fuses are in place, grounding is sound and the relays are working properly, then a third reason for the low or zero voltage could be corroded wires or wires with discontinuity. Checking for corroded wires is done by checking the voltage drop across them. If the voltage difference between two connected points of the wire shows a voltage drop of more than 0.1 Volts, there is a problem. You must replace the wire. The method for checking continuity is to measure resistance between the points, connected by the wire using an ohmmeter. If its infinite, the wire has broken inside and must be replaced.


If neither the fuses, relays or wires show a problem and the devices are not working, then you can safely conclude that there is problem with the end device. Water exposure of an electrical circuit can lead to such shorting of devices. Water seepage into windshield wiper circuitry or other circuitry is common during the rainy season.


Performing a periodic check of the car's electrical installations in this way, prevents any future problems that may crop up. Changing and replacing components and making a full scale car repair could be a job, best left to a mechanic but understanding and diagnosing the electrical problem could be done by you. Hope I have succeeded in conveying to you, what a humble man armed with a voltmeter and an ohmmeter can achieve! Troubleshooting car electrical problems this way, not only introduces you to the amazing intricacies of car design, but also gives you the satisfaction of solving a problem on your own!

www.buzzle.com

 

We recommend that before performing any maintenance or repair to your vehicle to always have a service manual handy. You can check herefor your specific service manual.

 

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Light Truck & SUV Tire Information

by Administrator 21. September 2009 11:53

suv2

About Light Truck and SUV Tires
Since these vehicles have so many different uses, it makes sense that several tire types are used on them as original equipment to complement specific models. These include:

Difference of Pickup & SUV Tires
Pickups and SUVs differ from standard Passenger Cars in their overall strength, load carrying capacity, center of gravity, and driveline complexity:

The main reasons many Pickups and SUVs are originally equipped with standard passenger tires is to lower rolling resistance and weight which enhances fuel economy and, of course, costs less.

* Most Pickups and SUVs feature a full frame and body construction to enhance their strength for hauling, towing and/or off-roading. While strength is important, it also adds weight which the tires must carry. Most standard Passenger Cars use uni-body construction.


* Pickup Trucks are available in different load carrying capacities. Compact Pickups often feature 1/4 ton (226Kg) capacity while full size Pickups feature 1/2 (453Kg), 3/4 (680Kg) and 1 ton (907Kg) capacities. When Pickups are in use they tend to be either lightly loaded or loaded to capacity. Also, because it is easier to "overload" a Pickup Truck than a passenger car, the tires are more likely to experience more stress.

* Pickups and especially SUVs tend to have a higher center of gravity than Passenger Cars. Ground clearance is very important for trucks that are to be driven off road and the only way to add clearance under the axles is to install taller tires. Designing the truck around taller tires, than would be typically used on a standard passenger vehicle, and providing sufficient clearance for the tires results in a tall vehicle package and a higher center of gravity (with more body roll and load transfer) which make the tires work harder, especially under braking and cornering situations.

* For the approximately 66% of SUV's and 29% of Pickups which feature 4-wheel drive, you have the extra weight due to the driveline's complexity. The additional weight of the front wheel drive axle and hubs, drive shaft and transfer case all add extra stress to the tires.
NOTE: O.E. manufacturers match tires to a truck load carrying capacity.

What is the definition of a Light Truck Tire?
This is not as easy as it sounds. We define a light truck tire as any tire line or size which would typically be applied on a light truck vehicle (SUV, pickup, van). As such, it could be an LT-metric tire for use on a Ford F-350 or a P-metric 'light truck' size of a typical tire line such as the P235/75R15 on a Ford Explorer.

Types of Light Truck Tires
Since so many Pickups and SUVs are originally equipped with standard P-metric sized passenger tires it is important to understand the typical construction features that are added with P-Metric sized Light Truck tire designs and Light Truck designs in Light Truck sizes.

Click Here to view a chart explaining Light Truck Tire Types

Light Truck Numeric:

Prefix letters such as 'P' and 'LT' are used as part of tire size designations to differentiate between tires designed primarily for passenger and light truck service conditions.

Definitions
(per Tire and Rim Association):
'P' Identifies a tire primarily intended for service on passenger cars

'LT' Identifies a tire primarily intended for service on light trucks

The load/inflation formulas developed for 'LT' designated sizes are different from those for 'P' designated sizes due to the more demanding load and service need on light trucks.

In order to properly select passenger tires for use on light truck vehicles (mini pick-ups, mini-vans, recreational vehicles, SUV's, full-sized 1/2 ton pick-ups and vans), the load capacity of the passenger tire at any inflation must be reduced by 9% and the maximum load capacity molded on the sidewall must also be reduced by 9%.

7.50R16LT

7.50

Section Width in inches

R

Radial construction

16

Rim diameter in inches

LT

Light Truck designation

 

Light Truck High Flotation:

31X10.50R15LT

31

Approx. Tire diameter in inches

10.50

Approx. Section width in inches

R

Radial construction

15

Rim diameter in inches

LT

Light Truck designation

 

Light Truck Metric:

LT235/75R15

LT

Light Truck designation

235

Section width in millimeters

75

Aspect ratio

R

Radial construction

15

Rim diameter in inches



Ply Rating/Load Range
While there is no industry-wide definition of ply rating, truck tires are frequently marked with ply rating and equivalent Load Range. These markings are used to identify the load and inflation limits of that particular tire, when used in a specific type of service. The table shows the conversion of tire markings.

 

 

 

www.tiresafety.com

PLY

LOAD

 

PLY

LOAD

RATING

RANGE

 

RATING

RANGE

2

A

 

14

G

4

B

 

16

H

6

C

 

18

J

8

D

 

20

L

10

E

 

22

M

12

F

 

24

N

 

 

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Bad News: An Engine "Totaled"; Good News: A Remanufactured Engine

by Administrator 20. September 2009 10:34

gascut

It was among travelers' worst nightmares and a very expensive trip for this motorist. His beloved pickup blew the engine and had to be towed 250 miles home. The temperature gauge didn't work, nor did the check engine light. By the time he realized the engine was overheated the damage was done.

Exploring his choices, he and his technician considered the pros and cons of trading in the truck, having a new engine installed, overhauling the old engine or installing a remanufactured engine.

Trading in the truck, like "throwing the baby out with the bath water," was out. The costly option of a new engine was also out. How about overhauling the old one? Also expensive, said his mentor, possibly costing about the same as installing a remanufactured engine.

However, the remanufactured engine would carry a strong factory warranty. The remanufactured engine would not only be as good as the original, in several respects it would be better. Hand-built with the finest equipment available, these engines are built to more exacting standards than original. Further, a reman has the added benefit of a "seasoned" block, a metallurgical phenomenon which extends engine life and enhances performance.

Several lessons can be learned from this owner's experience and that of others who have "blown" their engines.

Lesson #1: Don't gamble with inoperative instruments and warning lights (the latter, when working properly, light up when the ignition first is turned on).

Lesson #2: At the first indication of overheating pull off the road and shut off the ignition. You may be able to avoid totally destroying your engine.

Lesson # 3: If, by failing lessons #1 and #2, you've ruined your engine, you have some viable options beyond disposing of your vehicle.

www.alanssuperiorauto.com

www.carcare.org

 

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Preventive Maintenance | Do it yourself car repair?

Fall Into Good Car Maintenance Habits

by Administrator 20. September 2009 10:21

Fall into good car maintenance habits now, and keep your car in excellent condition for years to come.

autumn911(NAPSI) While our cars may have cruised through the warmth of the summer without any trouble, cold weather can set in before we even notice the leaves have fallen from the trees – just another reason to remember how important it is to get our cars ready for winter driving in the fall, otherwise we could find ourselves left out in the cold.

Following a simple maintenance checklist can save you time and money by extending the life of your car and insuring that you have fewer problems in the winter months, so to keep our cars running as smoothly as possible in cooler weather, here are some good tips:

Tires

Tires lose pressure every month and even more so when the temperatures drop. To maintain proper pressure, it’s good to get in the routine of checking tires monthly to be sure they’re filled up to their recommended psi rating (which can be found on the driver’s side door paneling, in the owner’s manual or sometimes on the tires themselves).

Check the tread on the tires for wear and replace them if they’re excessively worn.  If it’s been over 5,000 miles since your tires have last been rotated, it’s a good idea to have it done since there’s a risk of having one tire wear more significantly than the others.

Finally, if you live in an area where the temperature consistently hits the freezing point during winter months and snow vastly accumulates, now is the time to begin looking for winter tires.

Oil

Lower temperatures can add stress on your engine. To prevent engine wear, change your oil and oil filter as specified in your manual. A switch to synthetic oil, if you’re not using it already, will help your car operate more efficiently.  Synthetic motor oils are specifically designed to protect your engine in wide temperature ranges.

Cooling System

Now is the time to check the cooling system (radiator) for any leaks and top up low levels. If needed, it should be flushed and refilled as recommended in the owner’s manual.

Don’t remove the radiator cap until the engine has thoroughly cooled.

While coolant is usually associated with warmer weather, the coolant – or antifreeze – is just as important in the colder months to ensure your car can withstand the winter temperatures.  A 50/50 mix of anti-freeze and water is the usual recommendation.

Full Engine Tune-Up

If you haven’t taken your car in for its annual tune-up, or haven’t done it yourself yet, now is the time to get it done. Cooler weather only makes existing problems worse, so a tune-up will correct any engine problems, such as stalling and diminished power, and will also ensure that all fluid levels for brakes, transmission, windshield washer, etc. are topped off or replaced if needed.

Automotive Service Manuals

If you are a do it yourself kind of person, make sure to have a service manual for your vehicle before performing any maintenance or repairs. You can check for your service manual here.

 

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Do it yourself car repair? | Preventive Maintenance

DMV Web Sites By State

by Administrator 3. September 2009 12:23

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