1989 GMC Suburban TSBs
2 Technical Service Bulletins across 2 categories
Categories
Engine
1 bulletin39070
NEW CAST IRON EXHAUST MANIFOLD AND STAINLESS STEEL GASKET TO CORRECT ENGINE NOISE CONDITION.
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*TW
Transmission
1 bulletin10007838
DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN.
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*TT