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.

How do you verify good grounds?

Thread Tools
 
Search this Thread
 
Old Feb 5, 2022 | 02:13 PM
  #1  
QuintenMcKracken's Avatar
Thread Starter
Newbie
 
Joined: Feb 2022
Posts: 7
Likes: 0
Year: 1994
Model: Cherokee (XJ)
Engine: 4.0L
Default How do you verify good grounds?

First post on here but I've used these forums extensively the last year. I picked up '94 sport off CL for $1500. Great runner, some rust, but overall very happy to have it. However, in the past couple weeks or so, I've been having starting issues. When I go to crank, the starter will go then stutter like the battery is low. If I hold it, it will eventually start and run rough.

Did a lot of digging and followed what appears to be the standard:
- Cleaned grounds (batt to fender, batt to block, dipstick to sensors, head to firewall)
- Replaced the battery before all this started happening but checked voltage off and on and all checks good (12.8v off and 14.1v running)
- replaced the starter (old one was caked with gunk from the oil filter adapter)
- checked fuel pressure (30psi at idle and up to 39psi running with regulator vacuum removed and doesn't bleed down for about 10mins)

From what I can tell, it still seems like a grounding issue. I'm guessing the rough start is the PCM getting weird voltage during the crank and resetting. Sometimes, it starts no problem but about 50-70% the rough start occurs (cold or hot start)

My question is how do I verify I've cleaned the grounds correctly or if I still have a bad ground or another issue somewhere else? I figured jumping the block to the battery would be a good test but still had the rough start. Im getting to my wits end trying to figure this out and have read over 20+ threads about the issue and still can't resolve it.
Reply
Old Feb 5, 2022 | 02:30 PM
  #2  
BruceB's Avatar
CF Veteran
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2014
Posts: 1,102
Likes: 364
From: Eustis, Florida
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0
Default

this will help

https://www.cherokeeforum.com/f51/cr...x-tips-153657/
Reply
Old Feb 5, 2022 | 04:00 PM
  #3  
lawsoncl's Avatar
CF Veteran
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2017
Posts: 4,365
Likes: 1,215
Year: 1989
Model: Comanche (MJ)
Engine: 4.0
Default

Time to take a good look at those battery cables and clamps. They originals are probably a bit rotten inside by now. I prefer using the military style terminals and my local farm&home store has some decent pre-made cables in various lengths and gauges. 4-gauge to the starter and block are plenty big enough.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Ella15
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
Jul 7, 2017 10:28 PM
kissthis66
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
Aug 12, 2014 08:03 AM
QueBallin1989
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
Oct 24, 2012 02:42 PM
XJeepin23
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
Jan 7, 2012 08:24 PM
CONRAD
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
5
Mar 20, 2011 05:32 PM

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



All times are GMT -5. The time now is 04:03 AM.