GMC Sonoma Repair and Maintenance

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

GMC Sonoma Problems

Electrical Contacts in the Ignition Switch May Fail

The electrical contacts in the ignition switch may fail and result in erratic instrument panel gauge operation or illumination of the Check Engine Light. A failed ignition switch will require replacement.

Heater Core Under Right Side of Dashboard May Leak Engine Coolant

The heater core under the right side of the dashboard may leak engine coolant which can puddle on the passenger front floor. The loss of coolant may cause an engine overheating condition. Our technicians tell us that removal of the dash board is necessary to replace the heater on these vehicles.

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.

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GMC Sonoma Questions

switching to 4hi from 2hi by itself what causes it (1 answer)

My truck will switch to 4hi when driving it down the road and turning the corner making it hard to turn

After running out of gas. It won't start. (2 answers)

After running out of gas I added a few gallons and it didn't start. I then added a few more gallons and, it still doesn't start.

There is a strong smell of octane from inside door panels.. (1 answer)

Smell of gas is strong coming from inside (driver door) I smell it from outside too. 6 months ago is when I first noticed. However, three months ago it passed inspection . Machanic says it's ok . Yet I'm not convinced.

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GMC Sonoma Recalls

Air Bag Labels May Be Incorrect

Vehicles may have an air bag warning label with incorrect statements. This is against the Federal Motor Vehicle Safety Standard. Owners will be sent corrected labels and installation instructions. The recall began June 4, 2004. The GM recall number is 04021.

GM Recalls 2000 Chevrolet S10, GMC Sonoma, Olds Bravada Due to Incorrect Payload Rating

The payload as listed on the vehicle certification label exceeds the actual limitations of the vehicle.  If the weight limitations of the vehicle are exceeded, the vehicle will not operate as designed, and may cause a safety issue. Owners will be sent a revised vehicle certification label that is accurate.

Recall 00V220000
VEHICLE DESCRIPTION: LIGHT DUTY PICKUP TRUCKS AND SPORT UTILITY VEHICLES. THESE VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THE DAYTIME RUNNING LIGHTS BUILT WITH A CANDELA VALUE GREATER THAN 3,000 CANNOT BE MOUNTED HI...

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GMC Sonoma Reviews

Bought 1997 Sonoma with 4.3 V6 and 5 speed Trans with 36000 miles on her. Since then I have 0ver 373000 miles on her as of today. She's one tough truck. Since New I have replaced 1 water pump, 1 fuel pump, 1 intake gasket. Believe it or not. I,m still on the original clutch, though She starting to chirp once in a while now. So my baby letting me know its getting to be time for replacement. I'm ...
We have just hit 198,000 miles today with no major problems our 14 years together have been good she had 6 miles when I bought her and yes there has been a lot of parts replaced but she only stranded me once when I put a cheap starter on her. she has only had mobile one oil and will run very ruff if she sits for more than 4 days. any way you do the math she is well worth it, and I don't know wh...
I HAVE A 2000 GMC SONOMA. I'VE REPLACED JUST ABOUT EVERYTHING ON IT. THIS IS MY SECOND GMC TRUCK BUT I WILL NEVER OWN A THIRD ONE. NOTHING BUT TROUBLE FROM THE BEGINNING. TOTAL COST OF REPAIRS AROUND $15,000. I BOUGHT THE TRUCK NEW FOR $17,000. NEXT PROBLEM THE TRUCK GOES TO JUNK YARD.

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