Where is coolant Temperature Sensor on 1989 model? - JeepForum.com

 
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post #1 of 10 Old 06-25-2006, 07:31 AM Thread Starter
clifsmith
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Where is coolant Temperature Sensor on 1989 model?

Where is coolant Temperature Sensor on 1989 model and does it control the computer for fuel / air mixture? My haynes manual shows a 1991 sensor on the thermostat housing, but mine is not there.

Thanks!

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post #2 of 10 Old 06-25-2006, 08:19 AM
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there are 2 sensors, one is in the radiator on the driverside a little more than half way down, and the other in in the top of the head on the driverside almost all the way back.

89 XJ 4door - Limited - AW4 - NP231 - 180K - 31's - About 5" Lift - Trimmed - GONE!

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post #3 of 10 Old 06-25-2006, 12:43 PM
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Quote:
Originally Posted by Scrub
there are 2 sensors, one is in the radiator on the driverside a little more than half way down, and the other in in the top of the head on the driverside almost all the way back.
the one in the radiator is only for the electric fan if yours came with one. the one at the very back driver's side of the head goes to the dash guage, and I think a different one is used for a guage versus idiot lights.
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post #4 of 10 Old 06-25-2006, 07:32 PM
JoeShmoXJ
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Quote:
Originally Posted by BrettM
the one in the radiator is only for the electric fan if yours came with one. the one at the very back driver's side of the head goes to the dash guage, and I think a different one is used for a guage versus idiot lights.

Quoted for truth, this man has it right. Brett: what would be the wait on a joystick? been looking at your stuff on naxja.

1989 XJ
4.0 / AW4 / 242 / RE 5.5"
30 Front: Chromo Shafts/Joints/4.88's.
44 Rear: Aussie/Crown Vic Disks/4.88's
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post #5 of 10 Old 06-25-2006, 07:38 PM
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Its supposed to be on the thermo housing.Thats where my 89 was.

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post #6 of 10 Old 06-25-2006, 07:43 PM
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The coolant temp sensor that sends a signal to the PCM on the Renix 4.0's is located in the side of the block, driver side, below the manifolds.

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post #7 of 10 Old 06-25-2006, 07:45 PM
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Quote:
Originally Posted by anony91xj
The coolant temp sensor that sends a signal to the PCM on the Renix 4.0's is located in the side of the block, driver side, below the manifolds.

Yes you are correct.But there are 2

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Originally Posted by kairo
what's wrong with bombing poor people? It has all the awesomeness of bombing combined with removal of crime. It's like a win win situation.
Unwad your panties
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post #8 of 10 Old 06-25-2006, 08:10 PM
JoeShmoXJ
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To recap, i'll summarize. There are three sensors:

Gauge - Located on drivers side, rear of head. (one wire)
Elec. Fan - Located on drivers side, radiator, near lower hose (2 wires)
PCM - Located on drivers side, on the block underneath the manifold.

There should be no sensor in the thermostat housing, that came in 91+

1989 XJ
4.0 / AW4 / 242 / RE 5.5"
30 Front: Chromo Shafts/Joints/4.88's.
44 Rear: Aussie/Crown Vic Disks/4.88's
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post #9 of 10 Old 06-25-2006, 08:28 PM
BrettM
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Quote:
Originally Posted by JoeShmoXJ
Quoted for truth, this man has it right. Brett: what would be the wait on a joystick? been looking at your stuff on naxja.
sending ya a PM
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post #10 of 10 Old 06-25-2006, 10:14 PM
ChaoticBastard
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Quote:
Originally Posted by JoeShmoXJ

There should be no sensor in the thermostat housing, that came in 91+

My 90 waggy with the renix had that sensor on the housing.I remember when I changed out the water pump.The system wasnt upgraded .Maybe they just swapped housings earlier.But it also had the plug in it

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Originally Posted by kairo
what's wrong with bombing poor people? It has all the awesomeness of bombing combined with removal of crime. It's like a win win situation.
Unwad your panties
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