Automatic Transmission Fluid Temp Sensor

Discussion in 'Technical' started by tjleilo, Apr 22, 2019.

  1. tjleilo

    tjleilo New Member

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    Sorry guys, I have another question.
    I had my automatic transmission in my 300zx reconditioned about a year ago. It has a good amount of oil as I check regularly and I don’t have enough money to swap in a manual just yet. The transmission fluid temperature sensor reads an alarming 105c when driving after a while (221f) but it doesn’t seem as if the transmission is overheating.

    This morning it was 23.3C (74F) degrees outside and BEFORE the car was turned on I turned the cars ECU on and checked the temp sensors for both the engine and transmission. The engine was reading about 25.6C (78F) and the transmission was reading 33.9C (93f) with the fluid temp sensors voltage being 2.92v. This seems very wrong to me. The car wasn’t started since the day before and the ambient temp was much lower. There is no reason it would be that hot, and the voltage according to the manual should be between “0.5-1.5.” Mine is clearly not within that range. My transmission has some symptoms of a bad fluid temp sensor. Does this seem like the sensor is bad?
    IF SO where do I find one and is it relatively easily replaceable?
    I can’t find one online.
    Thanks!
     
  2. Martin Williams

    Martin Williams Active Member

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    Yep, your sensor has gone. Have you tried Nissan? Rob will be able to assist you
     
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  3. tjleilo

    tjleilo New Member

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    Thank goodness.
    Thanks! I’ll give that a try, usually they aren’t too helpful...do you know if a home do it yourselfer like myself would be able to replace it?
     

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