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The third generation of the Toyota Camry in all markets outside Japan. 1991-1996 was also called the XV10 series of Camry vehicles.

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1994 Toyota Camry cooling fan not coming on until it's overheating

I am having issues with my 94 Camry LE 2.2L overheating so, I went through and replaced almost everything in the cooling system, except the radiator, because that was cracked and leaking when I bought the car, so It was done a few months prior. I replaced all three coolant temp sensors (two of them just before the upper radiator hose, and one on the bottom of the radiator) thermostat, flushed and filled fresh coolant (made sure no air in the system). After all of that I was still having a problem with the fans not kicking on until the temp was reading right below the red line on the gauge. I thought I had tracked it down to a brand new faulty temp sensor on the radiator, because when you unplugged the sensor with the car running, the fans would kick on full speed, so I replaced it again but was still having the issue. I then tracked it down to a blown relay, and even had a certified tech confirm that issue. They replaced the relay and the fans functioned somewhat better for a day or two, however it was still running a little hot, just not all the way to the red line, but as of now it is right back to where it was, where the fans will only kick on right as the gauge reads overheating. I have not confirmed whether the relay is blown again.

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Hi @harrisson88

Don’t know the answer but here’s the 1994 Toyota Camry (SXV10, MCV10 Series) Electrical Wiring Diagram.

Go to p.242-243 to see the circuit diagram and a description of the radiator fan operation.

Hopefully this is of some help in tracking down the problem

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Hi. Were you ever able to figure our this issue? I'm having the same problem with my 1994 Corolla.

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Yes I did fix the issue. When I replaced the coolant temp sensor that’s closest to the upper radiator hose, the sensor came with thread tape on it to prevent it leaking. After tons of research I found a one off article from 10 years ago that stated that that sensor grounded through the housing it mounts in and does not need thread tape. Once I removed the thread tape the fans started working as intended.


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kyle mayfield sarà eternamente grato.
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