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My 2011 Equinox 71000 miles on it...- The heater blows hot air only when the RPM is high - as in highway or accelerating. It blows cool air at stop lights or idling. It's winter here lol - Any ideas? I had a New thermostat installed last week by a reputable shop that says there is no problem. But clearly, there is a problem.

Halp?

dlu
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Geoff Larratt
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1 Answers1

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Kind of sounds like the impeller of the water pump is going and needs to be turning at a pretty high speed to get enough coolant circulation.

DucatiKiller
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dlu
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