1999 GMC Sonoma Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 GMC Sonoma

1999 GMC Sonoma Problems

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

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

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.

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1999 GMC Sonoma Questions

Its a v6 push button 4x4 1999 gmc sonoma 2 door. It only changes while driving especially after going up steep heels.when i let off gas then i hear the winding sound and have to push 4 high than 2wd button

The fuel filter has been checked , and it is getting fuel

i have spark i changed in jectors it still wont start gasi have but does not come out the injectors help

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