2002 GMC Sonoma Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2002 GMC Sonoma

2002 GMC Sonoma Problems

Loss 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.

Driveability Problems Due to Internal Distributor Fault

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.

Transmission Leak From Output Shaft Seal

A fluid leak may develop from the transmission output shaft seal. This leak may cause the transmission mount to become oil soaked and require replacement of the mount along with the leak repair.

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2002 GMC Sonoma Questions

The 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.

truck dies, after battery light comes on all lights buzzers and everything works (1 answer)

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

why does the fuel gauge show low fuel light when tank is almost full? (2 answers)

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

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2002 GMC Sonoma Reviews

Have had the Ext Cab V6 engine model since new (now 91,000 miles). Now have problem with ABS LIGHT on dash - no one knows what to do to fix it. Have replaced the 3rd door latch 3 times - running lights go off when direction signal is on - but seems everyone has the same problem and GM does nothing to remedy it. Do routine maintenance and it will run forever, I hope. Would rather spend a couple ...
I have a 02 GMC Sonoma and the passager side cab is rusting. The thired door handle broken because its plastic. Its automatic and some times when shifting it does not seem like it wants to shift. The daytime running lights work but when I turn on the turn signial they go out until the turn signial goes out.
A door pin was replaced and then the third door was readjusted and wind noise is gone. Have problems with seat belt on occasion not retracking properly. Still get antifreeze smell on certain dial settings. The truck has developed wind noise on the drivers side door upper right. Had trouble keeping the antenna screwed on but I think the dealer took care of that. Tried E-85 fuel but truck ...

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