Question about 1988 Toyota Camry

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Fan stays on when not needed - 1988 Toyota Camry

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The relay for the cooling fan may be sticking on. Relays are inexpensive (about$15), or just get one from a salvage yard. If not the relay, the coolant temperature sensor could be it, or check if there is a fan temperature switch (maybe called a thermal switch) in the radiator that is tied into the fan circuit.
Sorry, I don't have access to a wiring diagram for your Toyota. If none of the above helps, suspect an ecu malfunction-the engine computer.

Posted on Aug 01, 2013

Testimonial: "We have changed the relay sensor 2 times. Will have to pass this info to my brother. I think there is a short in the wiring. The clock stay lit up all the time and the battery goes dead within a few hours. Thank you"

  • montehammons Aug 02, 2013

    Could be a short. I'd be surprised if the clock would draw enough current to drain the battery, but you could disconnect it and see if battery still goes down overnight. Here is a procedure to check for what is called a parasitic draw-or an unintended drain on the battery. Step 9 on the page is the actual procedure

  • montehammons Aug 02, 2013



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This is normal. The fan will run with the engine off till the rad temperature goes below about 100 degrees F. Do not worry about this only if the fan stays on longer than 10 minutes. You may need a new fan relay if it won't go off. Good luck!

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