My oil pressure drops big time at idle
Thread Starter
Newbie
Joined: Aug 2013
Posts: 4
Likes: 0
From: mantua, nj
Year: 2000
Model: Cherokee
Engine: 4.0l
My oil pressure drops big time at idle
My oil pressure drops to almost zero at idle...according to dash gauge. Throws the check gauges light. 138k miles, great compression, no oil burn, very very very slight valve tap at idle. Oil is 10w40
CF Veteran
Joined: Feb 2011
Posts: 3,500
Likes: 0
From: Long Beach, Ca
Year: 2000
Model: Cherokee
Engine: 4.0 I6
Oil pressure switch is probably bad. I just replaced mine as it was leaking by into the wiring harness making it seem I had low or no oil pressure at idle.
Member
Joined: Feb 2010
Posts: 110
Likes: 0
From: Waterford Township, NJ
Year: 1991
Model: Cherokee
Engine: 4.0
Uh-oh
Bad rings = smoke at tail pipe
Bad bearings = low oil pressure
Try the cheap fixes first, sending unit, gauge, etc
Are you the original owner?
Good luck
Bad bearings = low oil pressure
Try the cheap fixes first, sending unit, gauge, etc
Are you the original owner?
Good luck
Thread
Thread Starter
Forum
Replies
Last Post
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
28
Jan 8, 2025 11:36 PM
EBowen95
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
49
Aug 25, 2015 08:44 PM
jeeper albert
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
Aug 24, 2015 01:17 PM
kjdad
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
12
Aug 21, 2015 08:11 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)