2003 GMC Sonoma Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 GMC Sonoma

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2003 GMC Sonoma Problems

Erratic Fuel Gauge Operation

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.

Check Engine Light Due to Gas Cap Issue

A Loose or worn gas cap may cause Check Engine Light to illuminate.

Serpentine Belt Tensioner May Fail

The serpentine belt tensioner can fail; it may become noisy and/or the belt may jump off. Replacement of the failed tensioner will be necessary.

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2003 GMC Sonoma Questions

2003 GMC Sonoma, engine turns over but will not start. (1 answer)

My truck is a 2003 GMC Sonoma, 2.2L (repairpal did not give me the option of selecting 2.2 liter), standard transmission. When driving the other night, the engine started rocking very hard (I could feel it in the cab) like a cylinder was not firing. The truck also lost power. I was able to pull i...

I get no heat from my heater, it blows cold air...I have replaced the theremosta (3 answers)

When I try to put gas in my truck the pump keeps kicking off.Gas light is on (1 answer)

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2003 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.

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2003 GMC Sonoma Reviews

4.3 v6 is a great engine. drives and handles great. gets 22 mpg at 70mph on interstate.

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