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1990 GMC Sonoma
2 Technical Service Bulletins (TSBs)
TSB List for the 1990 GMC Sonoma
Technical Service Bulletins (TSBs) for the 1990 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.
STRUCTURE:BODY:HOOD
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TSB #GM561204
WATER LEAK AT THE A/C RECIRCULATION DOOR (INSTALL NEW HOOD HINGE SEAL). *TW Read More »
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
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TSB #GM161514
END GATE LATCH RATTLE (INSTALL REVISED STRIKER). *TW Read More »