My 1990 Acura Integra's fan (AC I think) continues to run hours or days after it's turned off. Of course, often the battery is dead as a result. Sometimes if I put the key in the ignition it stops. Sometimes, if I turn the key all the way to the right without cranking, it stops. Then if I turn it one click to the left it turns back on. I understand continuing to run for 30 minutes might be normal, but not for hours, or even the next day.


Asked by May 14, 2007 at 05:11 PM about the 1990 Acura Integra

Question type: Maintenance & Repair

1990 Acura Integra RS Automatic.

We tried replacing the AC pressure switch, but it didn't help.

5 Answers


Its probably a faulty wire that is not getting a signal to the fan to shut off. Very strange. Doesn't seem like something you would be able to take care of yourself.

1 people found this helpful.

check the fan relay

1 people found this helpful.

the thermo switch is probably screwed replace and it should be fine

1 people found this helpful.

those late 80's early 90's hondas were equipped with a fan timer module. As soon as you shut off, if the engine was above X temp then the timer would run the fan for about 20 min after shut off. The problem however, was a burnt resistor sometimes and the fan would run continuously until the battery was dead. I know these are on the accords and preludes, and have repaired many of them, but dont know if they are equipped on the acura models. But i wouldnt be surprised if they are. Thats what your problem sounds like.

2 people found this helpful.

check your fan relay i had the same problem on my 95 integra ls fan ran all night and killed my battery had to jump my car and took it to a local shop that said it was the relay and fixed it within a couple of hours.

1 people found this helpful.

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