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Temp sensor for cooling fan

This is a discussion on Temp sensor for cooling fan within the Engine and Drivetrain forums, part of the Technical category; Does any no where this sEnsor is located? Fan is intermittent from the min u turn the key on. All connections look good at radiator. ...


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Old October 19th, 2010, 06:47 AM   #1
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Temp sensor for cooling fan

Does any no where this sEnsor is located? Fan is intermittent from the min u turn the key on. All connections look good at radiator. I'm sure I got something jacked up at sensor. Need help locating
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Old October 19th, 2010, 07:27 AM   #2
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Re: Temp sensor for cooling fan

On the engine is only one temperature sensor, one next to thermostat housing
I think this sensor send temperature reading to ECU which control the fan on/off operation. IMHO
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Old October 19th, 2010, 08:03 AM   #3
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Re: Temp sensor for cooling fan

Temp sensor is on the head.

As a fail safe, if the plug gets disconnected the fan will run continuously.

If the the plug comes loose intermitantly making/breaking connection the fan operation will be erratic/intermittent also.
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Old October 19th, 2010, 08:28 AM   #4
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Re: Temp sensor for cooling fan

Allcool, that is exactly what I'm experiencing. Thank u both. Ill check it out tonight
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Old October 25th, 2010, 02:57 PM   #5
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Re: Temp sensor for cooling fan

wanted to let you guys know, i found the issue, wire loom chaffed and grounding out on the frame.
thanks for the help. the info was spot on.
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Old April 13th, 2013, 06:21 PM   #6
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Re: Temp sensor for cooling fan

My fan won't come on unless I hard wire it
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