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Resources for the Repair and Maintenance of your 1999 GMC Sonoma

1999 GMC Sonoma

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1999 GMC Sonoma Problems

Engine -- Verified

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.

Exhaust & Emissions -- Verified

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

Heating & Air Conditioning -- Verified

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.

Drive Train -- Verified

Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.

Engine -- Verified

The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.

1999 GMC Sonoma Questions and Answers

Palmetto fl, 1999 GMC Sonoma, 4 Cylinder, Palmetto, FL

It started by working now and then mainly inthe mornings, now the mileage dislay quite working period. fuses are ok I even replaced them just to see if it would work, nothing.

emery1444, 1999 GMC Sonoma, V6, Bridgeville, PA

I keep getting a code for the rear oxygen sensor heater malfunction, the oxygen sensor has been replaced (2 times) The oxygen sensor is working fine. Also the SEC AIR SYSTEM is always incomplete an...

thunderrosa, 1999 GMC Sonoma, 4.3L V6, Oxford, WI

I have a 1999 sonoma truck, it kept getting stuck between 2 wheeland 4 wheel drive, so i unpluged the 4 wheel drive so i only have 2 wheel i drove it that way for a long time now i have that loud n...

jamiess68, 1999 GMC Sonoma, 4.3L V6, Mckeesport, PA

engin light is on. engine runs rough at idle, auto zone can not read the computer, why cant they get any info from it

Big Wild Bill, 1999 GMC Sonoma, 2.2L 4 Cylinder, Charleston, MS

How to drain a fuel tank on a 1999 GMC Sonoma

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