oil psi stuck just under 40, even when engine not on
02-01-2011 | 09:22 AM
#1
Thread Starter
Newbie
Joined: Jan 2011
Posts: 14
Likes: 0
From: Dillon, CO
Year: 1998
Model: Grand Cherokee
Engine: 5.2
oil psi stuck just under 40, even when engine not on
i thought the sending unit was bad so i changed it with a new one from napa. still not working. if i turn the key to on (but not turning on the engine) it goes up to near 40 psi and stays there. engine on doesnt make a difference. so is it a bad sending unit, short in the wires, or bad dash gauge???
02-01-2011 | 08:26 PM
#3
CF Veteran
Joined: May 2008
Posts: 3,018
Likes: 17
Year: 1988
Model: Cherokee
Engine: AMC242
If it zeroes out with the key OFF and jumps with the key ON, check the sender.
If it doesn't zero out, but stays mid-scale with the key OFF, check the gage (it's probably stuck, and you may be able to open the IP up and manually free the gage.)
If it doesn't zero out, but stays mid-scale with the key OFF, check the gage (it's probably stuck, and you may be able to open the IP up and manually free the gage.)
Thread
Thread Starter
Forum
Replies
Last Post
jmarzo
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
16
10-18-2022 04:11 PM
Jamesmon4
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
1
08-16-2016 09:04 PM
MidwestNick
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
02-28-2016 02:05 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)