electric fan temp sensor problem

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Dec 4, 2011 | 09:33 AM

Tim H

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From: Southern Indiana

electric fan temp sensor problem

Hey, I changed over to a electric fan set up and a 175/185 temp sensor and it worked real well for awhile then I noticed yesterday that the temp was not ever coming up to proper temp.
I used my temp gun at the sensor and it said 86 degrees and the fans were on?
I guess that means the sensor is bad already?

Dec 4, 2011 | 07:03 PM

Ben Lurkin

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From: Oquirrh Mountains

St. Jude Donor '09

Could be the sensor or perhaps the fan relays assuming you're not using a pwm fan controller. When the fans are on, unplug the temp sensor. If the fans quit, it's the sensor. If not, it's probably the relays.

Dec 4, 2011 | 07:17 PM

Bruthish

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From: New Albany IN

St. Jude Donor '03-'04-'06-'08-'09

Hey Tim, off the subject a little...I am getting ready to run the electrical for my dual fan setup. How did you run your wiring in regards to the main power source? Did you run it all the way to the battery or did you find another place? Also, where did you mount your sensor(assuming it is a block mount style)?

Dec 4, 2011 | 07:40 PM

terry82

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From: columbia city in

can you run the hot wire to the fan , off the wire to the starter?

Dec 4, 2011 | 07:50 PM

Tim H

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From: Southern Indiana

Quote:

Originally Posted by Bruthish

I get my power from the Alternator, and since my car is a hotrod I put the relays and stuff right where they can be seen and maintained if they need to be.
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Dec 5, 2011 | 02:56 PM

Tim H

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From: Southern Indiana

Jegs is sending me another sensor for free.
Its hard to pick where to get parts with Summit and Jegs always being hassle free!

Dec 5, 2011 | 03:59 PM

Bruthish

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From: New Albany IN

St. Jude Donor '03-'04-'06-'08-'09

I have never had a problem with Summit and depending on what time of day I order, I usually get my parts the next day.

Did you mount your sensor/switch into the manifold?

Dec 5, 2011 | 04:06 PM

Tim H

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From: Southern Indiana

Quote:

Originally Posted by Bruthish

I have never had a problem with Summit and depending on what time of day I order, I usually get my parts the next day.

Did you mount your sensor/switch into the manifold?

Yes on the drivers side of the thermostat housing.