Heater only works above idel..help

rusking · 10-20-2009, 12:29 AM

I have a 2001 stock mustang. It has 80k on it and the heat blows cold air unless above ideal. Im not sure what it is...maybe a hose poped off but where i cant find anything wronge. The motor temp it dead center and still cold air till i give gas...starts getting warmer around 2k on tach. All positions of blower, floor, defrost, vent..any. What could this be?

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Azrael · 10-20-2009, 01:05 AM

Thermostat maybe? I'm really not sure, but I'd bet someone around here knows.

Xemeth · 10-20-2009, 07:34 AM

Clogged heater core.

neo8222 · 10-20-2009, 12:57 PM

oh yeah thats gona be fun.... ever wanted to take out your dash before? wel guess what

LilRoush · 10-20-2009, 01:07 PM

Sell the car. After doing so many heater cores in Mustangs I swore I'd just by pass it and sell the next one. LOL