1995 Toyota Camry overheating with replaced engine coolant fan temp switch

Asked by Jul 25, 2015 at 01:03 AM about the 1995 Toyota Camry LE

Question type: Maintenance & Repair

I just finished replacing my radiator, two hoses (for the radiator), the thermostat, and the
engine coolant fan temp. switch on my 1995 Toyota camry ( 300k miles).   However, after
replacing the engine coolant fan temp. switch, the fans stopped working and the car
started to overheat.  But when the engine coolant fan temp. switched is disconnected, the
fans work and the car does not overheat. How should I fix this if the engine coolant fan
temp. switched is necessary?   What could the problem be?

2 Answers

30,215

sounds like the switch is not doing its job...the sender completes the circuit..but switched/sending unit ?

Clarification needed. Why was the radiator Etc. replaced in the first place? I believe that temp sw. is in a series circuit with the AC pressure switch, then to ground. When these 2 switches close... they activate No. 1 and No 2 fan relays. Then both fans should be running. Plug in that switch you DC and start her up and turn on the AC system to the highest setting. BOTH fans,, the coolant fan and condenser fan should run. BTW...just to make things more interesting, Toyota has a 3rd. relay which also controls the fans on this vehicle.

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