Why does my 96 Sierra overheat

Asked by Apr 16, 2017 at 11:02 PM about the 1996 GMC Sierra 1500 C1500 SL Standard Cab LB

Question type: Maintenance & Repair

1 Answer

107,755

Stuck thermostat, bad cooling system hoses, blocked air flow through the radiator, restricted coolant flow through the radiator, worn out water pump impellers, badly rusted engine block, ECM running the engine too rich or retarded timing.

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