Notices
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.
Sponsored by:
Sponsored by:

Renix era issues

Old 08-09-2018, 09:35 PM
  #46  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Alright, repaired the brown and white wires, and a pink and black splice, but didn't know what to do with the black wire splices so left them for now. Still stumbles and poots

Edit: still idling high also, but that's not as much of a concern as the stumbling while cruising at the moment.

Also, replaced the alternator today with no change.
SatiricalHen is offline  
Old 08-09-2018, 09:41 PM
  #47  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 37,609
Year: 1990
Model: Comanche
Engine: 4.0
Default

Cut those splices out and solder the connections.
cruiser54 is offline  
Old 08-09-2018, 09:45 PM
  #48  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Originally Posted by cruiser54
Cut those splices out and solder the connections.
I cut the brown wire splices out and soldered the 6 wires together. I cut the one pink going to 2 pink out and just fixed the joint. For the black wires just cut out the splice and fix the connection? Don't attach them to each other or anything?
SatiricalHen is offline  
Old 08-09-2018, 09:46 PM
  #49  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 37,609
Year: 1990
Model: Comanche
Engine: 4.0
Default

Originally Posted by SatiricalHen View Post
I cut the brown wire splices out and soldered the 6 wires together. I cut the one pink going to 2 pink out and just fixed the joint. For the black wires just cut out the splice and fix the connection? Don't attach them to each other or anything?
Hey, if they're grounds, go ahead and make another connection to the body also.
cruiser54 is offline  
Old 08-09-2018, 09:56 PM
  #50  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Originally Posted by cruiser54
Hey, if they're grounds, go ahead and make another connection to the body also.
I assume they're grounds. I've learned this thing has sat longer than I thought which probably doesn't help anything. I talked to the son of the PO and he said he cannot remember it ever running and he's 18. He said it definitely hadn't run for 13 years, but couldn't remember before that.
SatiricalHen is offline  
Old 08-09-2018, 09:59 PM
  #51  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 37,609
Year: 1990
Model: Comanche
Engine: 4.0
Default

Originally Posted by SatiricalHen View Post
I assume they're grounds. I've learned this thing has sat longer than I thought which probably doesn't help anything. I talked to the son of the PO and he said he cannot remember it ever running and he's 18. He said it definitely hadn't run for 13 years, but couldn't remember before that.
You can test them. Got a meter?
cruiser54 is offline  
Old 08-09-2018, 10:04 PM
  #52  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Originally Posted by cruiser54
You can test them. Got a meter?
Yes I do, but testing will have to wait till lunch or after work tomorrow. Thank you for continuing to help with these issues!
SatiricalHen is offline  
Old 08-09-2018, 10:17 PM
  #53  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 37,609
Year: 1990
Model: Comanche
Engine: 4.0
Default

Originally Posted by SatiricalHen View Post
Yes I do, but testing will have to wait till lunch or after work tomorrow. Thank you for continuing to help with these issues!
Certainly.
cruiser54 is offline  
Old 08-10-2018, 07:42 PM
  #54  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Got back to fooling with it today. Those were indeed grounds so I fixed the splices and added a ground to body.

Tested the cps and it shows .6 AC volts

With the wiring fixed, tps adjusted properly, no vacuum leaks I can find ( I've plugged the vacuum stuff and tightened the manifold bolts), two different IAC, new and old alternator, new and old distributor, new and old throttle body, new and old tps, new and old ECT sensor, new and old o2 sensor, and any IAT I try. It always idled high and stumbles. Stumbling is fixed by unplugging the IAT with a huge hit to power. The idle will sit at 750 if I start the jeep then create a large vacuum leak (unplug the brake booster) then plug it back in. Swapped all the relays in the "relay center". Not sure where to look.
SatiricalHen is offline  
Old 08-11-2018, 09:40 AM
  #55  
::CF Moderator::
 
cruiser54's Avatar
 
Join Date: Aug 2011
Location: Prescott, Az
Posts: 37,609
Year: 1990
Model: Comanche
Engine: 4.0
Default

Is the EGR hanging open?

Good solid vacuum to the MAP/

Last edited by cruiser54; 08-11-2018 at 09:43 AM.
cruiser54 is offline  
Old 08-11-2018, 02:57 PM
  #56  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Originally Posted by cruiser54
Is the EGR hanging open?

Good solid vacuum to the MAP/
No egr, has a 99 intake. Strong vacuum to the map when you test it with your finger, but i haven't put a gauge on it.

New problem. I was just cruising around today and it started misfiring very bad. I'm going to try pulling plugs and checking what I can. I got a noid light set to check the injector side of things, and I've already pulled the cap to see if there's anything unusual or broken. Renix era issues-photo660.jpg to me it looks like it's catching one edge of the posts, but I don't know enough about what they should look like. Going to pull the plugs now and see what they look like.
SatiricalHen is offline  
Old 08-11-2018, 03:07 PM
  #57  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Renix era issues-photo884.jpgRenix era issues-photo757.jpgRenix era issues-photo235.jpgRenix era issues-photo892.jpg I guess I forgot to take a picture of a couple, but the only one that looked wet was plug 1 and the rest looked dry, but burned up the side or something
Edit: correction number 6 and 5. Counted from the wrong end
Attached Thumbnails Renix era issues-photo739.jpg  

Last edited by SatiricalHen; 08-11-2018 at 05:14 PM.
SatiricalHen is offline  
Old 08-22-2018, 06:30 AM
  #58  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

The fuel filter wasn't catching all the junk from the tank, causing the injectors to get stuck open or maybe they just dribbled in fuel so it couldn't be burnt. Anyway, new gas tank, new fuel filter and new to me injectors. Put a 330 ohm resistor in place of the IAT (closest resistor size I had to the 200 I had heard someone else had used) and it runs very very close to perfect. It has a very slight stumble occasionally, but if you aren't looking for it you probably wouldn't notice it. Not sure what that tells us testing wise though. Still idles high though
SatiricalHen is offline  
Old 08-22-2018, 06:47 AM
  #59  
Member
 
Jeepy2013's Avatar
 
Join Date: May 2016
Location: Palm Coast, FL
Posts: 191
Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
Default

Ah.......Renix era XJ's........

Both Renix era XJ's I've owned had gremlins under the hood of one sort or another.
Jeepy2013 is offline  
Old 08-23-2018, 02:44 PM
  #60  
CF Veteran
Thread Starter
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,337
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Threw a vacuum gauge on it today and it sat right at 19 in. At idle so I'm assuming there's no vacuum leaks causing the high idle
SatiricalHen is offline  

Thread Tools
Search this Thread
Quick Reply: Renix era issues


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description: