Mechanics

WHERE IS THE COOLING FAN SENSOR LOCATED?

1995 Saturn SC2 • 4 cylinder FWD Manual • 185,000 miles

My saturn runs hot whenever the car is sitting still for about 5 minutes or more. The cooling fan comes on only when I turn on the a-c. It does not turn on automatically like it used to. I was told the sensor has gone bad.
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Jamcan1
October 7, 2011.




The coolant temperature sensor is located on the rear of the engine near the coolant outlet.

See attached diagram.


Dan_K
Oct 7, 2011.
Just to add to this its the bottom sensor with two wires going to it a yellow wire and black wire. Also inspect the coolant temp sensor connector if the terminals in the connector are green ir blue there corroded and you will have to reolace the connector also. The coolant temp sensors crack and leak coolant into the connector causing the terminals to get corrodedWhat temp on the gauge does the fan come on at?I have seen the fans come on at the tip of the red on those cars from worn temo gauges and bad gauge temp sending units. Which is the top sender with a single green wire.


Saturntech9
Oct 7, 2011.
Thanks for making this much more clearer, saturntech.


Dan_K
Oct 7, 2011.
Your welcome always willing to help out the other moderators or the users asking the questions.


Saturntech9
Oct 7, 2011.
What temp on the gauge does the fan come on? It doesn't come on at all. I have to turn on the a-c in order to get the fan to come on.


Tiny
Jamcan1
Oct 7, 2011.
Then replace the bottom coolant temp sensor and inspect the connector too for being corroded.


Saturntech9
Oct 7, 2011.
Thanx for the info.
AD


Tiny
Jamcan1
Oct 7, 2011.
Your welcome keep me posted on how you make out.


Saturntech9
Oct 8, 2011.

AD