Question about 1995 Nissan Altima
My 95 Altima only turns on the radiator fans when I turn on the AC. When the AC is off, the fans don't come on thus causing eventual overheating. I replaced the Temp sensor and sending unit. No Luck. I checked the fans, independently and they run fine on both low and high speed. The relays seem to be working O.K.. If I disconnect the temp sensor with the engine running, the fans also turn on and run on high. I guess this means the ECM is receiving the temp sensors signal?. Maybe the the ECM is not sending a low speed signal to the fans?. Any suggestions?
Call up the dealer and ask what commands the fans to come on once the car reaches operating temp, on alot of imports, there is a fan control box of some sort that actually sends the sig to the fans to come on.
If it's the temp sensor and the computer tells the fans to come on you could be looking at a faulty computer.
This would deffinetly be worth taking to the dealer to diagnose so that you don't keep wasting your time and money chasing a ghost.
Posted on Sep 02, 2008
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