Oil pressure drop
07-14-2011, 04:54 PM
#1
Junior Member
Thread Starter
Join Date: Jun 2011
Posts: 96
Likes: 0
Received 0 Likes
on
0 Posts
Model: Cherokee
Oil pressure drop
What is the oil pressure supposed to be running at mine seemsto fluctuate between 10 and 40. 40 being wen my foot is in the gas. Is this bad and what can it be ?
07-14-2011, 05:03 PM
#2
Member
Join Date: Jun 2011
Location: Richmond, VA
Posts: 174
Likes: 0
Received 1 Like
on
1 Post
Year: 1995
Model: Cherokee
Engine: I6
Mine's done that for the last 4years,the original owner said it rolled off the lot like that.
I assumed it was normal.
Once, it read higher, but I replaced the oil pressure sensor, and it was fine again.
If you can't be good, be good at it!
I assumed it was normal.
Once, it read higher, but I replaced the oil pressure sensor, and it was fine again.
If you can't be good, be good at it!
07-14-2011, 05:47 PM
#4
CF Veteran
Join Date: Jun 2011
Location: Nor-Cal
Posts: 2,858
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
We just had a very informative thread on this. Supposedly idle should be >12 as in 13 and up and I think cruise was in the high 30s.... you ougt to use the search function for oil pressure.
My jeep (being grateful that I rescued her from her old dysfunctional family) idles around20 and tops out 50-60.... I feel lucky.
My jeep (being grateful that I rescued her from her old dysfunctional family) idles around20 and tops out 50-60.... I feel lucky.
Last edited by Slick761; 07-14-2011 at 05:58 PM.
07-14-2011, 06:32 PM
#5
CF Veteran
Join Date: Nov 2010
Location: In the middle of Minnesota!
Posts: 5,805
Received 99 Likes
on
88 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Oil pressure spec. for the Jeep 4.0 is as follows:
*Not less than 13 psi at hot idle
*Between 37-75 psi over 1600 rpms
If you're in this bracket, you're fine.
*Not less than 13 psi at hot idle
*Between 37-75 psi over 1600 rpms
If you're in this bracket, you're fine.
Thread
Thread Starter
Forum
Replies
Last Post
idahomike
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
84
06-17-2016 07:39 AM
Blackxj51
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
22
09-13-2015 06:06 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)