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Heater

(1997 Ford F-150)
in Paducah, KY on January 06, 2011
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
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Popular Answer
on January 06, 2011
My inital thought is sticking thermostat, but I think you'll need a hands on diagnosis to help with this one.
on February 29, 2012
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)

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