Help With Part ID - Thermo Housing/Coolant Temp Sensor? - Defender Source
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  #1  
Old March 25th, 2013, 09:50 AM
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Help With Part ID - Thermo Housing/Coolant Temp Sensor?

This shade tree mechanic is appealing for some help in identifying the circled compenents in the pics below. I'm in the process of replacing my radiator and will also swap out the hoses and thermostat at the same time.

In the first pic, is the this the thermostat housing? Is it a straight bolt off and on for the thermo replacement? I have a new t-stat and gasket at the ready.

In the second pic, what is this component and should there be a plug attached to it?

Thanks.
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  #2  
Old March 25th, 2013, 09:57 AM
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Yes and the sensor is for the AC which I don't think you have. It basically allows the AC to shut down as a precaution if the engine is running too hot.

Thermostat replacement is straightforward although if you haven't changed the 2 small front hoses I'd do that as well while you are in there.
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Old March 25th, 2013, 10:18 AM
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Thanks Jason. So, where is the coolant temp sensor located?
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Old March 25th, 2013, 10:28 AM
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That's the water (coolant) temperature switch.
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Old March 25th, 2013, 10:50 AM
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Quote:
Originally Posted by geoellis View Post
Thanks Jason. So, where is the coolant temp sensor located?
it a smaller sensor with a single wire in the block ... not far away.
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Old March 25th, 2013, 10:51 AM
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Originally Posted by leastonce View Post
it a smaller sensor with a single wire in the block ... not far away.
Jason... The coolant temp sensor in the the thermostat housing.

I'll dig it up in RAVE.
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Old March 25th, 2013, 10:52 AM
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the sensor above the one you circled is the fuel temp sensor just in case you were wondering
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Old March 25th, 2013, 10:59 AM
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Good to know, thanks.
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Old March 25th, 2013, 11:03 AM
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Found it...
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Old March 25th, 2013, 12:20 PM
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Great info, thanks. I need to step up my game and get rave.
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Old March 25th, 2013, 12:32 PM
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Originally Posted by geoellis View Post
Great info, thanks. I need to step up my game and get rave.
PM sent
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Old March 25th, 2013, 12:43 PM
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Old March 25th, 2013, 02:36 PM
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Quote:
Originally Posted by geoellis View Post
The Man!
Busy day at the office?
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Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
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  #14  
Old April 2nd, 2013, 10:24 AM
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I located the coolant temp sensor and ordered replacement part PRC2506. Mysteriously, the sensor that came out of my engine is diffeent from the stock part, which doesn't fit. The probe on the PRC2506 is fatter than the hole in the block.

Here are some pics of the old and new sensor and the mounting location on the block.

Has anyone seen this before? Any suggestions on the correct sensor part number?

The engine is a stock 3.9 and the gauge is the original, as far as I can tell.
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