GMC Repair and Maintenance

A guide to problems, costs, maintenance and repair for your GMC

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GMC Problems

Erratic Fuel Gauge Operation

The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.

On certain 2005 - 2007 vehicles, General Motors has provided a special service policy covering the fuel level sensor, agreeing to pay 50% of the repair cost. This coverage extends for 10 years or 120,000 miles from the original "in service" date of the vehicle. Please contact your local GM dealer for more information.

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The Upper Dash May Crack

The upper dash may crack, most commonly on vehicles in warm climates and exposed to a lot of sunlight. The common repair is to replace the upper instrument trim panel. Information on a technical service bulletin or extended warranty is not available at this time.

The Upper Dash May Crack

The upper dash may crack, most commonly on vehicles in warm climates and exposed to a lot of sunlight. The common repair is to replace the upper instrument trim panel. Information on a technical service bulletin or extended warranty is not available at this time.

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GMC Questions

i have a loud pop coming from front axle in 4wd only. what could be causing this (1 answer)

only happens in 4wd lo or hi

are fuel injectors for this car direct or multiport? can I use rebuilts? (1 answer)

My car failed nys emissions inspection(MIL command and KOER). they said i need to replace injectors. New replacements are expensive. Can they be serviced? i have almost 127,000 miles. My engine light trouble code was p2099

How can I resolve an error B0004? (1 answer)

Hi! How can I resolve an error code B0004 on a GMC Savana 1500? It's a 2007 model with a 4.3L engine.

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GMC Recalls

Brake Fluid Leaks And Reduces Braking Performance

The front brake caliper piston seals may leak brake fluid, causing braking performance to be reduced. Dealers will inspect the front brake calipers and replace them as necessary free of charge to resolve the concern.

Vehicle Equipped With Improper Inside And Outside Mirror Combinations

The vehicles were built with an improper mirror combination of no inside rear view mirror and a right hand convex mirror. Vehicles require both side mirrors being flat if no inside mirror is provided. Dealers will install a right hand flat rear view mirror free of charge to resolve the concern.

Software Defect May Prevent Airbags From Deploying

If the airbag system is in a diagnostic test mode during a crash, the deployment of the frontal airbags and seat belt pretensioners will not occur. Dealers will reflash the system software. In the event the vehicle has had a previous airbag deployment, the airbag sensing and diagnostic module (SDM) will be replaced free of charge. 

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GMC Reviews

Bought used with 47201 on odometer, runs great, look great, really happy with my purchase. Only thing had to replace was the right passenger headlight bulb.
I purchased a 2007 GMC Acadia.. BIGGEST MISTAKE of my life... 70,000 miles transmission went on it... 75,000 miles timing chain went on it.. 80,000 miles censors went on it... Now timing chain just went again 2 days before I have to go back to work.. I'm a single father raising 2 kids and can't afford this shit.. I am totally screwed...
I bought my 2001 Sierra PU new in Nov. 2000. It's now June 18, 2016 - 317,000+ miles later on original motor. Notes: 1. Replaced radiator at 293,000+ miles. 2. Replaced transmission at 238,000 miles 3. Replaced alternator at around 275,000 miles. 4. Fuel pump - worst part on the truck. I've replaced 4 times at least, almost $700 a pop. It's in a funky location so it's the labor of...

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