1989 GMC Suburban

2 Technical Service Bulletins (TSBs)

TSB List for the 1989 GMC Suburban

Technical Service Bulletins (TSBs) for the 1989 Suburban 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.

  • ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
  • POWER TRAIN

    • ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

    • TSB #376602A

      Date Announced:
      JAN 01, 1995
      NHTSA ID:
      #39070

      NEW CAST IRON EXHAUST MANIFOLD AND STAINLESS STEEL GASKET TO CORRECT ENGINE NOISE CONDITION. *TW Read More »

    POWER TRAIN

    • TSB #990730016A

      Date Announced:
      OCT 01, 2002
      NHTSA ID:
      #10007838

      DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT Read More »

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