04 GT

2004 Pontiac Grand Prix

Tiny

camaro_74

December, 16, 2010 AT 12:21 AM

My 04 pontiac grand prix gt egine cooling fans turn on late. I changed the coolant temp sensor but still the same. The temp gauge reads a little over 3/4 of the way when the fans turn on. What else can be the cause for this.

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3 Answers

Tiny

rasmataz

December, 16, 2010 AT 12:56 AM

Could be the computer controlled of the relay-also try replacing the engine thermostat and see what happens it controls the engine temperature sensor.

Tiny

camaro_74

December, 27, 2010 AT 3:14 AM

I changed the thermostat and its still the same. The fans don't come on til after the temperature is between the 3/4 and the red zone. Could it be the fan relay

Tiny

rasmataz

December, 27, 2010 AT 9:35 PM

Try swapping it with a like one and see what happens-don't work double check wiring at the CTS, Fan relay-if okay could be the computer control circuit of the relay-

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