in my car the electric rad fans come on as soon as i start car and stay on also on start it runs real rough do you think it could be sensor? a/c is not turned on when this happens

 

 

Thnx, Mark

have you checked the codes? But yeah...sort of sounds like a coolant temp sensor.

have you checked the codes? But yeah...sort of sounds like a coolant temp sensor.

Yes I agree with Josh

Depending on how the coolant temerature sensor fails . If after checking the codes you disconnect the battery for say 30 minutes this should reset the alarms. The fans may then not turn on at start depending on how the alarm is processed.

My guess is that you have had the check engine light up sveral times and not taken any action so after say 5 or 10 such events the ECU has latched the fans up

ok im gonna go with the coolant sensor, now one question? where is it? i see a sensor under alternator but it only has 1 lead, i asume thats for the gauge and not the computer sensor? this is on a ej22 engine

 

 

Thnx Again, Mark

I think the sensor you want is in the radiator but I'm not sure.

theres no senor in the rad, the sensor you're looking for is at the top of the water manifold under the intake manifold. Theres actually two of em, i forget which is which.

http://www.main.experiencetherave.com:8080/subaru/images/injectors/DCP_2477.JPG

 

It's the big one (brown connector)

 

btw that pic is on the coolant runner, under the pass side of the intake manifold

Thnx for the replys, my engine is mpfi and i dont see anything like whats in the pics Josh, any other hints?

 

 

 

Thnx, Mark

:) Thanks Everyone, that did the trick Mark