I have wondered about this for a while and hoped someone could shed some light on the subject. I tried to use the search to find something out because I figured others may have had this problem however the search feature always gives me a ton of stuff that has nothing to do with what I am looking for.
Anyway, my old supra had a problem. It was a silver 1988 n/a with 7m-ge motor. I had found out what was causing this problem by trial and error the hard way lol. I drove to visit some friends of mine that live about 5 hours away. The car had been driving pretty well but I had noticed the car's temp went up a bit with the ac on but hadn't been a problem until I drove to visit some friends. My supra overheated about 45 minutes from their home and I got a tow using triple A to their house from where I broke down.
To make a long story short......I found out that with my a/c button depressed but not on, it was causing my car to overheat. Once I pressed the button for the ac to let it out I didn't have the problem again but of course I couldn't use my ac without the car overheating. If the ac was running and the ac button was depressed it would overheat also. I don't have the car anymore and I do not know for sure if it had a bhg or not but I have wondered what had caused the problem.
I have recently bought another 1988 red n/a supra that blows hot air out of the ac, but not sure yet if I have the same problem or not. The furthest I have driven it is about an hour or more. I am sure it doesn't have any coolant and I plan on putting some in soon as the summer heat is a bit much (especially when it rains with the windows rolled up lol). I am also wondering, if I ran around with no coolant in the a/c but had the a/c on would that also cause my engine to overheat? Or should running the a/c have no effect to engine temp?
thanks in advance
Wormms
Anyway, my old supra had a problem. It was a silver 1988 n/a with 7m-ge motor. I had found out what was causing this problem by trial and error the hard way lol. I drove to visit some friends of mine that live about 5 hours away. The car had been driving pretty well but I had noticed the car's temp went up a bit with the ac on but hadn't been a problem until I drove to visit some friends. My supra overheated about 45 minutes from their home and I got a tow using triple A to their house from where I broke down.
To make a long story short......I found out that with my a/c button depressed but not on, it was causing my car to overheat. Once I pressed the button for the ac to let it out I didn't have the problem again but of course I couldn't use my ac without the car overheating. If the ac was running and the ac button was depressed it would overheat also. I don't have the car anymore and I do not know for sure if it had a bhg or not but I have wondered what had caused the problem.
I have recently bought another 1988 red n/a supra that blows hot air out of the ac, but not sure yet if I have the same problem or not. The furthest I have driven it is about an hour or more. I am sure it doesn't have any coolant and I plan on putting some in soon as the summer heat is a bit much (especially when it rains with the windows rolled up lol). I am also wondering, if I ran around with no coolant in the a/c but had the a/c on would that also cause my engine to overheat? Or should running the a/c have no effect to engine temp?
thanks in advance
Wormms