Jeep Cherokee Forum

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.

90 xj Knock Sensor????

Thread Tools
 
Search this Thread
 
Old 04-06-2022, 05:39 PM
  #1  
Member
Thread Starter
 
homestd's Avatar
 
Join Date: Feb 2021
Location: S.E. KY
Posts: 192
Received 8 Likes on 7 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0l
Default 90 xj Knock Sensor????
Hi all, I was working on my driver's side motor mount and some wiring was in the way. When I moved it over (gently) I noticed a plug hanging from the harness. It has a plug like the injectors with a lock clip. I went to my FSM/PDF and I think it goes to the knock sensor. I located the sensor (without contacts) just above the oil pan ridge.





Is this the knock sensor? She's running great without it, but I need to know what to replace. Thanks gang.
homestd is offline  
Reply Like
Old 04-06-2022, 08:03 PM
  #2  
CF Veteran
 
Saudade's Avatar
 
Join Date: Aug 2020
Location: SoCal
Posts: 1,763
Received 470 Likes on 384 Posts
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0L
Default
Yep, that's it.

Assuming you can get the rest of the broken connector out, you can replace the sensor.

https://www.rockauto.com/en/moreinfo...5108&jsn=10913
Saudade is offline  
Reply Like
The following users liked this post:
homestd (04-06-2022)
Old 04-06-2022, 09:11 PM
  #3  
Member
 
Salden Hund's Avatar
 
Join Date: May 2012
Location: Th Cloud
Posts: 235
Received 0 Likes on 0 Posts
Year: 90'
Model: Cherokee
Engine: 4.0
Default
lol, mine looks just like that
Salden Hund is offline  
Reply Like
Old 04-06-2022, 10:07 PM
  #4  
Member
Thread Starter
 
homestd's Avatar
 
Join Date: Feb 2021
Location: S.E. KY
Posts: 192
Received 8 Likes on 7 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0l
Default
It runs great without it. I'll replace it, but it's my daily, (actually, my only). Thanks
homestd is offline  
Reply Like
Old 04-06-2022, 10:14 PM
  #5  
Member
Thread Starter
 
homestd's Avatar
 
Join Date: Feb 2021
Location: S.E. KY
Posts: 192
Received 8 Likes on 7 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0l
Default
BTW, Will I loose oil when I remove it? It looks pretty high.
homestd is offline  
Reply Like
Old 04-07-2022, 07:20 AM
  #6  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,971
Received 1,559 Likes on 1,263 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Default
No.
cruiser54 is offline  
Reply Like
The following users liked this post:
Salden Hund (04-08-2022)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
What sensor is this?
twotone92
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
03-29-2022 04:18 PM
Is this a Renix Knock sensor
EuroJeep
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
17
07-11-2019 07:47 AM
knock sensor question
williey00
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
03-06-2011 08:19 PM
knock sensor
hudson12787
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
11-10-2010 07:24 AM
lets play name that sensor
richxj89
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
07-05-2009 08:15 PM
Back to Subforum
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
View Next Unread
Coolant temperature sending unit. Can't find.

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



Advanced Search
Quick Reply: 90 xj Knock Sensor????


Reply Closed Thread Share

All times are GMT -5. The time now is 07:28 AM.