1991 GMC Sonoma
TSBs (Technical Service Bulletins)
Technical Service Bulletins (TSBs) for the 1991 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.
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TSB #GM561204
WATER LEAK AT THE A/C RECIRCULATION DOOR (INSTALL NEW HOOD HINGE SEAL). *TW Read More »
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TSB #GM161514
END GATE LATCH RATTLE (INSTALL REVISED STRIKER). *TW Read More »