1999 GMC Sonoma Service and Repair Manual
This factory service and repair manual for the 1999 GMC Sonoma covers a compact pickup sold as a three-door extended cab, a two-door extended cab or a two-door standard cab, in SL, SLE or SLS trim. The engine choice runs to two: a naturally aspirated 2.2L inline-four of 134 cubic inches, and a naturally aspirated 4.3L V6 of 262 cubic inches, both overhead-valve. Each has its own tune-up figures, torque values and diagnostic procedures, and the rest of the truck is documented system by system alongside them.
Engines covered
- 2.2L inline-four (134 cu in) — OHV, naturally aspirated, gasoline
- 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 3-door extended cab pickup
- 2-door extended cab pickup
- 2-door standard cab pickup
Trims covered
- SL
- SLE
- SLS
Known issues on the 1999 Sonoma. A single recall touches this model year, and it involves a replacement fuel pressure regulator assembled without its sealing ring and retainer, so fuel can escape at the joint and find an ignition source. On the complaint side, 83 reports are logged, led by service brakes, with seats and the power train close behind. The hydraulic brake procedures, the seat and body hardware steps, and the transmission and axle diagnostics in this manual are the sections those reports point toward.
CERTAIN DELPHI FUEL PRESSURE REGULATORS, P/NOS. FP10020-11B1, FP10026-11B1, AND FP10027-11B1, SOLD AFTER JANUARY 9, 2007, AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES LISTED ABOVE. THE UNI
FUEL MAY LEAK, POSSIBLY RESULTING IN A FIRE.
DELPHI WILL NOTIFY OWNERS AND REPLACE THE UPR FREE OF CHARGE. THE RECALL BEGAN ON APRIL 23, 2007.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and
Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form o
Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form o
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's
Showing the 8 most recent of 71 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNED A 1999 GMC SONOMA. WHILE DRIVING 5 MPH ON A FLOODED DIRT ROAD, THE CONTACT CRASHED INTO A DITCH. AFTER THE CRASH, THE VEHICLE CAME TO A COMPLETE STOP. THE AIR BAG DEPLOYMENT WAS
VEHICLE STRUCK THE REAR OF ANOTHER VEHICLE AT 35MPH, NEITHER DRIVER'S SIDE NOR PASSENGER'S SIDE AIR BAG DEPLOYED. MANUFACTURER HAS BEEN CONTACTED. *AK
THE ACCIDENT THAT HAPPENED IN OCTOBER WASN'T REPORTED BECAUSE IT WAS A SINGLE VEHICLE ACCIDENT AND THE PAVEMENT WAS WET. I FIGURED IT WAS MY FAULT AND NOT THE BRAKES. AT THE SECOND ACCIDENT, THE PAV
WHILE DRIVING AT 10 MPH CONSUMER WAS HIT HEAD-ON BY ANOTHER VEHICLE ON DRIVER'S SIDE. UPON IMPACT, DRIVER'S SIDE AND PASSENGER'S SIDE AIR BAGS DIDN'T DEPLOY. DRIVER SUSTAINE D LOWER BACK INJURY.
WHILE DRIVING 65 MPH CONSUMER HIT A COW IN THE ROAD, AND THE AIR BAGS DID NOT DEPLOY. TOOK VEHICLE TO DEALERSHIP, WHERE THE MECHANIC HAD NOT RESOLVED THE PROBLEM.*AK
Showing the 5 most serious of 78 complaints filed with NHTSA.
