Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Could a loose rotor cause a CPS/CMP code?

Thread Tools
 
Search this Thread
 
Old Jun 27, 2015 | 07:02 PM
  #1  
SlickXJ's Avatar
Thread Starter
Member
10 Year Member
 
Joined: Jul 2014
Posts: 165
Likes: 2
From: Sault Ste. Marie, Ontario
Year: 1996
Model: Cherokee
Engine: 4.0L Straight 6
Default Could a loose rotor cause a CPS/CMP code?

Hey everyone, I'm back. I took a much needed break from working on my 1996 cherokee and now I'm back at it. I moved my focus for my work to the cam sensor/rotor. I was going to check the cam sensor, and I found out I can move my rotor roughly an inch up. I looked and one of the bolts that goes through the bracket side with the lip on it is loose. Could this have caused the problems with my new mopar CPS? It wasn't throwing a code, but it would idle a little rough and when I revved it, it would backfire/misfire, shake, etc. If I tried to drive it up my road, passing like 1500 RPM would cause the misfires and such and it would lose a lot of its power. But with the sensor in that was in it when I bought it, it drive fine until it gets up to temp, then throws the code and starts dying at idle. My dad and I are going to look at it tomorrow and fiddle with it, but here's my overarching question:

Would a loose rotor cause a new mopar CPS to seem bad?
Reply
Old Jun 29, 2015 | 06:05 AM
  #2  
SlickXJ's Avatar
Thread Starter
Member
10 Year Member
 
Joined: Jul 2014
Posts: 165
Likes: 2
From: Sault Ste. Marie, Ontario
Year: 1996
Model: Cherokee
Engine: 4.0L Straight 6
Default

Anyone?
Reply
Old Jun 29, 2015 | 07:35 AM
  #3  
Bustedback's Avatar
CF Veteran
 
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Default

The reluctance wheel is mounted to the same shaft as the rotor, so yes it could cause problems.
Reply
Old Jun 29, 2015 | 10:26 AM
  #4  
SlickXJ's Avatar
Thread Starter
Member
10 Year Member
 
Joined: Jul 2014
Posts: 165
Likes: 2
From: Sault Ste. Marie, Ontario
Year: 1996
Model: Cherokee
Engine: 4.0L Straight 6
Default

By rotor I meant the whole distributor, sorry for any discrepancies. I ended up tightening the dist and so far she drives fine. Let's hope thats all it was
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tcq192
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
Dec 30, 2025 02:21 PM
carverdave
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
Sep 1, 2024 08:55 AM
codykrr
Modified XJ Cherokee Tech
9
Sep 18, 2015 01:27 PM
Girlski
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
Sep 15, 2015 03:31 PM
Ella15
Cherokee Chat
0
Sep 4, 2015 05:18 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 10:29 AM.