my xj problem i cant figure out plz help
Member
Joined: Feb 2012
Posts: 218
Likes: 0
From: springs
Year: 1990
Model: Cherokee
Engine: 4.0
Originally Posted by nickxj94
x7^ lol its the cps!!!
When u start the jeep it will be hard to start and may not start at all because the temp reading is showing a temp of almost -40degrees so the comp can't adjust properly and will not allow a start condition.
That's one way it fails
The other is when the jeep starts it thinks it's already warm since the sensor is showing a higher reading than it should and as the temp climbs, the sensor goes off the charts. This causes a shut down.
Test, clean, and dielectric grease the CPS terminal and all of them for that matter.
THEN test the CTS (coolant temp sensor) driver side of the block above the motor mount.
May need to pull the airbox
Anyway
You are looking for high ohms at start 14,000 or so
Then very low ohms at operating temp 145 or so.
If this fails, it a $27 sensor at any parts store.
Hope this helps
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,579
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
im have the same problem after i changed out the cps my last tune up was maybe 600 miles ago if even that i just bought the xj and its been nothing but a problem and is really making me miss my 4runner lol between work and it messing up i havent had it in the woods yet 
all these problems started 2 days after i replaced the thremo and radiator but it ran fine the day of...also where is the temp sensor located on my renix?? im having trouble locating it
all these problems started 2 days after i replaced the thremo and radiator but it ran fine the day of...also where is the temp sensor located on my renix?? im having trouble locating it
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Lol, I'm trying to get these threads answered and "closed" for both myself and anyone else that's curious. I have too many subscribed threads that OPs forget about
Thread Starter
Junior Member
Joined: Dec 2011
Posts: 45
Likes: 0
From: jville
Year: 1987
Model: Cherokee
Engine: 4.0L
sry guys my computer has been down as far as the issue goes ive fixed it for now theres alot of issues that are electrical i gotta get settled but it seems to be doing great so maybe itll say that way
Seasoned Member
Joined: Oct 2011
Posts: 433
Likes: 2
From: spokane valley, wa
Year: 1993
Model: Cherokee
Engine: 4.0
Have fun with tracing electrical... I'm still trying to find all mine after a year. (Po had an electrical fire in the trunk and the people that re wired it did a **** poor job. Didn't pull old wiring out and did a bunch of crap wrong.)
CF Veteran
Joined: Nov 2011
Posts: 1,290
Likes: 0
From: phoenix az
Year: 1989
Model: Cherokee
Engine: 4.0l 6 cylinder
Originally Posted by krazynezz
Have fun with tracing electrical... I'm still trying to find all mine after a year. (Po had an electrical fire in the trunk and the people that re wired it did a **** poor job. Didn't pull old wiring out and did a bunch of crap wrong.)
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