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  #1  
Old July 24th, 2016, 05:11 PM
trader2318
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scott
1997 D90 NAS
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Join Date: Jul 2015
Location: Wakefield, RI
Posts: 72
Temp gauge reading issue

Truck is a 1987 with a 2.5 turbo.

Looking for advice...
I am looking to troubleshoot the reading that I am getting from my temperature gauge. With the engine cold, I turn the key to get the reading shown below. After running for a bit around town, it will move up to the gap, the black area before the orange. The gauge is tied the the temp. sensor as when I unplug, the gauge drops to no reading.
Any thoughts?
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  #2  
Old July 24th, 2016, 08:43 PM
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steinhnj
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Neil Steinhagen
1990 Perentie GS
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Scott,

Read these, then report back.

http://www.defendersource.com/forum/...ing-72105.html

http://www.defendersource.com/forum/...uge-71942.html

Also try this link and search for "overheating": https://cse.google.com/cse/publicurl...95:8zpbxe3x-t4

-Neil
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  #3  
Old July 24th, 2016, 09:20 PM
Tarheeld
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Bill
1985 110
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could also be the radiator; a rerod could be in order?
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  #4  
Old July 24th, 2016, 09:58 PM
trader2318
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scott
1997 D90 NAS
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Join Date: Jul 2015
Location: Wakefield, RI
Posts: 72
Thank you both for the your thoughts. Steinhnj, I read the links you posted and thanks for that custom search page...very cool.
I am going to start with the sensor. To add clarity to my initial post, I am getting a high/hot reading with an engine that has been started today, with the key in the #2 position, not running. I have no other evidence that the truck is running too hot, just a weird acting gauge. If its not the sensor, I am thinking electrical issue (but no other problems) or incompatibility between sensor and gauge.
I will invest in an IR gun and give the water pump pulley a look as well.
Much thanks.
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