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Coolant temperature sensor wiring

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Old Jul 13, 2021 | 04:16 AM
  #1  
dhauzer's Avatar
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Default Coolant temperature sensor wiring

Hello,

XJ 1987, 2.5i gasoline engine.

I recently bought this car, it stood in the yard for 10 years.
I don’t know the history of the car, but it looks like the engine has been replaced in it. There are a lot of cables loose that I can’t find a place for, but the engine runs smoothly.
However, the coolant temperature sensor cable is missing (red circle).
I don't know where it comes from, I can't find a wire cut in the cable duct.
Where does this wire start from? Following from that side, I might find where it is cut off.

Sorry, i can't upload the images directly. You can find them under the links.

https://ibb.co/7N6KBVz
https://ibb.co/bQ9cmFp
https://ibb.co/QmWT9F0

Last edited by dhauzer; Jul 13, 2021 at 04:43 AM.
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Old Jul 13, 2021 | 03:53 PM
  #2  
cruiser54's Avatar
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From: Prescott, Az
Year: 1990
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Engine: 4.0
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The wire would go through the firewall to the cab.
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Old Jul 13, 2021 | 10:41 PM
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Looks like someone swapped in a later 91+ MPI engine. Or at least the thermostat housing, as the 87 2.5l TBI had the sensor on the side of the block. If there's one on the side of the block, you just have a bonus, unused sensor..
see --> https://www.cherokeeforum.com/how-to...-sensor-399021



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Old Jul 14, 2021 | 07:46 PM
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From: West Covina, Ca.
Year: 1988
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Note from DJ
How many spark plugs do you have?
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Old Jul 14, 2021 | 10:39 PM
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Originally Posted by djgrayxj
Note from DJ
How many spark plugs do you have?
Well, I'm going to assume 4 in the 2.5l 4-cyl engine. Or did you mean to ask how many injectors, i.e. TBI or MPI?
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Old Jul 14, 2021 | 11:27 PM
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This is a 4 cyl engine.
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Old Jul 14, 2021 | 11:53 PM
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Note from DJ

Thanks for your response.

The reason for my question is when I was looking closely at your number 3 engine photos it almost looked like to many spark plug wires leaving the distributor cap.
If that was true you have a 4.0L engine and not a 2.5L engine which would explain why you have so many left over connectors.
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