GMC Sonoma Repair and Maintenance
A guide to problems, costs, maintenance and repair for your GMC Sonoma
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GMC Sonoma ProblemsLoss of One or More HVAC Blower Motor Speeds
The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.
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.
The distributor may develop internal faults. This can cause a rough running engine or stalling condition and the Check Engine Light may or may not illuminate. The distributor should be overhauled or replaced to correct this concern.
GMC Sonoma QuestionsThe battery warning light on the dash comes on goes out repeatedly. What's causi (1 answer)
The battery light comes on for a few seconds then goes out then comes on then goes out. It just keeps doing it.
won't even try to turn over, if battery gets fully charged and key in on position for about 5 minutes then will start but only will run for a day or two
I changed fuel pump because it stopped working. installed new style ac delco pump assembly. fuel gauge worked just fine before that. new connector and wire splicing is correct. truck engine is running not a good gauge reading
GMC Sonoma RecallsAir 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.
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.