heater not working

Asked by GuruNSLDB Oct 30, 2019 at 03:37 PM about the 1990 Chevrolet C/K 1500 Silverado Extended Cab RWD

Question type: Maintenance & Repair

heater not working in truck what are some things to look for

1 Answer
21,895

Gary answered 4 years ago

Possible causes are low on coolant, bad thermostat, bad heater control valve just to name a few.

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