Question about 1997 Toyota Corolla

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Toyota Corolla 97 Heater Blows Cold

I've got a heating problem in my Toyota Corolla (97). I've checked the relay under the hood (about the limit of my skills) but cannot see any problem. I cannot however find a fuse for the heater (again just within my limits) so was wondering if anyone can point me in the direction of such a fuse or any other "unplug and check" type things I can try before calling on my very reliable mechanic. I just can't take the "can you fix nothing?" looks that he always gives me when I drop the car off with a small problem.

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Either:

You're low on antifreeze, your thermostat is stuck open, or you've got a blown head gasket.

Posted on Dec 02, 2008

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With engine warmed up, feel of heater hoses under hood to see if both are warm (careful don't burn yourself). If they both are warm, flapper door which directs airflow through heater is not working, probably because the actuator is bad or you have a vacuum leak. Check line under hood which goes to vacuum reservoir for vacuum, and check one way valve(check valve). Replace any old soft or cracked vacuum lines.

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1 Answer

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1 Answer

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1 Answer

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You may need to recharge your AC. The AC clutch relay seems to be a high failure item for this car. You can test by swapping relays under the hood. The AC clutch relay is located next to the negative battery post in the fuse box under the hood on the driver's side fender. It is the smaller relay marked "M/G CLT". This is available from Rockauto.com, $11.

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2 Answers

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