GMC Repair and Maintenance

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

GMC Problems

Fuel Level Sensor Failure

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

Speedometer or Other Instrument Panel Gauge May Work Erratically

The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault. The warranty has been extended on some of these units to 7 years or 70,000 miles.

Cooling Fan Clutch May Fail Causing Noise and Check Engine Light

The cooling fan clutch may fail causing excessive fan noise and/or the Check Engine Light to illuminate.

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GMC Questions

How do I installl the power window motor on the passenger side ? Regulator OK.. (1 answer)

Can you give me a sequence?
How do I support window and frame?
How does the motor gear install ?
How do I keep Reg. spring engaged?
Any other tips?

The window stopped 1/4 up but after cooling down it again works. I have the new motor to install and have the panel off.

cigarette lighter not work (1 answer)

is there a fuse

CD player not working the radio does will not eject CD. (1 answer)

The CD will not eject.

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GMC Recalls

Passenger Frontal Air Bag Inflator Ruptures On Deployment

The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.

Passenger Frontal Air Bag Inflator Ruptures On Deployment

The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.

Front Suspension Control Arm Welds Fail

The front suspension upper control arms may have welds that are not sufficient, resulting in separation of the arm from the bushing. Dealers will replace both the left and right upper control arms and realign the vehicle suspension free of charge to resolve the concern.

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GMC Reviews

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...
I've had the vehicle for six months. It just went through its first inspection and it only needed tie rods. I consistently have check engine light issues with the gas cap and others that I am unaware of however the truck runs great. I recently installed an "innovative" power performance chip and you can definitely feel the boost . Has anyone installed a performance air intake system, if so i...
Why did my inside/outside a.c. door quit working. Button dash lights up but door does not move. 2002 GMC Sierra 2500hd duramax

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