1997 Ford F-150 Q&A

1997 Ford F-150 Question: heater

heater is on and starts blowing cold and temp gauge goes hot,turn off control to heat/air,temp goes back normal.can turn back on and works fine untill next time -
Answer 1
My inital thought is sticking thermostat, but I think you'll need a hands on diagnosis to help with this one. -
Answer 2
hey dude i'm afraid that you have a blown gasket. The thermostat is definately bad, but if you keep driving when the gauge goes hot then you will need a new engine(will warp the block) Super Mario Bros. -
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