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

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

sounds like it may be coming from the fire wall. when this happens my brake petal pulsates and it will stop but, a lot slower than normal. Could it be a caliper binding up somehow? also, the ABS light will come on every time this happens and a lot of times it comes on anyway

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