Technical Service Bulletins (TSBs) for the 1994 Sonoma are official communications between GMC & their dealerships that describe processes for troubleshooting or fixing certain common problems.
All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.
PRODUCT SAFETY CAMPAIGN 94-C-61 - CAMPAIGN ANNOUNCEMENT TO RECALL CERTAIN 1994 S-TRUCK PICK-UP MODELS TO CORRECT THE VACUUM HOSE DETATCHMENT FROM THE BRAKE BOOSTER CHECK VALVE AS A RESULT OF AN ENGINE BACKFIRE. Read More »
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
INFORMATION CONCERNING ENGINE KNOCK/RATTLE OR TAP NOISE BEFORE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT OPERATING TEMPERATURE (REPLACE PISTON AND/OR ROD ASSEMBLIES). Read More »
KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT OPERATING TEMPERATURE KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED ... Read More »
