GreatAutoHelp.com


Check engine light, ABS, Airbags, transmission, 4 wheel drive, body electrical, OBD2 computer codes.
Our mechanics have it covered.
Over 95 years of combined auto mechanic experience.




Car Qeustions

Q A Categories

Browse our list of car repair questions and answers by vehicle make.

Sensor Locations

Sensor Locations

View pictures and read descriptions for many common engine sizes.

Car Forums

Car Forums

Browse our over 6,500 forum posts or join our over 1,500 registered users.

OBD Trouble Codes

Trouble Code

View computer codes lists and descriptions for engine, ABS, Airbags and more.

Automotive Operation

How It Works

Learn how many vehicle systems work. From the basics to the latest High-Tech.

Car Repair Basics

Car Basics

Learn basic car repair, maintenance, diagnosis and inspections.

Car Repair Videos

Videos

Browse our FREE automotive repair and maintenance video library.

Automotive Abbreviations

Terms/Abbreviations

View a list of common automotive terms and abbreviations.

Car Electrical Repair

Electrical

Electrical testing procedures explained with pictures and easy to follow steps.


For some great information and expert advice on anything related to the Ford Mustang,
you can go to AmericanMuscle's tech guides section





GreatAutoHelp.com

Our Chevy, Buick, Ford, Honda, Toyota, Pontiac, Oldsmobile, Cadillac and GMC mechanics offer advice, helpful hints, how to's and answers for all things related to cars or trucks. We are current certified dealership technicians.


Latest Car Repair Forum Posts

In Forum: Oldsmobile

without looking at the vehicle it is very difficult to know what is going on with why it is running rough. Did the mechanic say why he thought it was running rough? Too rich? too lean? Missing? Hunting or surging idle? Is the check engine light on? Or flashing? Plugged cat? Hooking up to a scanner could tell you a lot about what is going on. South Carolina to Idaho and back... Navy?


In Forum: Oldsmobile

the headlight dimmer switch (high / low beam switch) is on the steering column and is adjustable. After time the bolts may come loose and the dimmer switch moves away from the handle. Loosen the two bolts that hold the dimmer switch and move it towards the handle until you can make it click between the low and high beam and tighten the bolts back up. Don't over tighten and strip them out though


In Forum: Dodge And Chrysler

Thank you! Exactly the info I needed!


In Forum: GMC Trucks

when you have a "crank, no start" condition you have to check for the basics first. Fuel pressure, injector pulse and spark. No crank sensor or cam signal means the computer doesn't see the engine turning over so no spark and no fuel injector pulse. bad ignition switch could mean engine cranks over, no power to fuel pump or computer. Bad fuel pump could mean no fuel pressure so no st


In Forum: Chevy Cars

what year is your Impala and what engine? you have to explain what you are have a problem with. What do you mean it won't crank for 15 minutes? and then cranks? Are you talking about the starter turning the engine over? Or are you talking about the engine starting up? If the battery light comes on, it means the alternator is not charging or the engine has turned off. (stalled/died) the batt


In Forum: Chevy Trailblazer

that could be any of those things or none of those things. you should have the vehicle scanned to find out what is going on. Idle control, mismatch air/fuel ratio, fuel trims, 02 sensor working normally, cat plugged up, throttle problem, misfire from either fuel or spark. without scanning to see what the computer is reacting to, everything is just a wild guess. Just replacing parts could get e


In Forum: Buick

I don't know what the history on your car is but the code is for the evap canister purge valve located on the top of the engine on the intake manifold.




Testimonials

Thank you for the help, Greatautohelp.com was great, for what I would of paid at the Dealer ($110.00) your mechanic helped me for free and it was done in less than 30 min. Awesome web-site, thanks again.

Robert L. - Dallas, TX.

Awesome advice. It's nice to know that even a tech that is having trouble diagnosing a problem has some place he can go to bounce ideas and seek advice from other certified Tech's.

Steve R. - New York, NY.

It is so nice to have a website all about car that even a woman that does not know anything about auto repair can come to and get some free help.

Stacy K. - Miami, FL.


Newest Forums Posts

Chevy Cars  
Buick  
Chevy Trucks   
Dodge/Chrysler   
Ford Cars   
Ford Trucks   
GMC Trucks   
Honda   
Oldsmobile  
Saturn  

Choose Your Make Or Model
CHEVROLET

Cavalier   Cobalt   Equinox   Impala   Malibu   Monte Carlo  
Tahoe   Trailblazer   Venture Van

BUICK
Century   Lesabre   Regal   Rendezvous  

PONTIAC
Bonneville   Grand Am   Grand Prix   Montana / Transport

OLDSMOBILE
Alero   Aurora   Cutlass   Cutlass Supreme   Silhouette   Intrigue

Engine Operation

2.2L   3100 / 3400   3.5L   3800   4200   4.3L Vortec



Warning Lights

ABS   Check Engine   Trac / Traction Off 

Theft / Security   Airbag   Power Steering

Tire Pressure

Copyright © JRKaz,Inc. - All rights reserved.

Contact Us