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XJ Ask the Question Thread
CF Veteran
Joined: Nov 2010
Posts: 15,581
Likes: 8
From: some small town oregon
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by taxidave
It's the rearmost valve cover bolt by the firewall. Not much room for grips.
CF Veteran
Joined: Nov 2010
Posts: 15,581
Likes: 8
From: some small town oregon
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by TurboJeep
Well this guy who lives down the road from me had the same problem and said he had his cleaned and it fixed the problem. Could it have something to do with my pressure regulator?
I have a 1999 cherokee and recently replaced some radiator hoses . jeep has 199k on od still runs great until now . starts and idiles but within a few minutes it died while i was driving . restarted it but i had to keep pumping gas to get it to run and when it finally started it was running real rough and continued to die anyone have an idea what this may be ???
I have a 1999 cherokee and recently replaced some radiator hoses . jeep has 199k on od still runs great until now . starts and idiles but within a few minutes it died while i was driving . restarted it but i had to keep pumping gas to get it to run and when it finally started it was running real rough and continued to die anyone have an idea what this may be ???
when its cold, unplug the front o2 and start it up and let it warm up, if it stays running good until you plug it back in thats your problem.
TPS sensor is another possibility.
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
What size pipe is this cat?
Magnaflow 91005 Universal Catalytic Converter (Non CARB compliant) : Amazon.com : Automotive
Magnaflow 91005 Universal Catalytic Converter (Non CARB compliant) : Amazon.com : Automotive
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
CF Veteran
Joined: Oct 2011
Posts: 2,613
Likes: 0
From: Summerville, South Carolina
Year: 99
Model: Cherokee
Engine: 4.0
K see I thought so! But I got stuck in sand and some JERK helped me get out and said he would hate to get run over by a 4n car?? I was like, what?
Member
Joined: Jun 2010
Posts: 111
Likes: 1
From: Walnut Creek, CA
Year: 1991
Model: Cherokee
Engine: 4.0 liter
Originally Posted by dukie564

Jeep is an American brand...always has been and I hope always will be made in the U.S.A.
Also Argentina and Venezuela.
Last edited by taxidave; Aug 28, 2012 at 05:58 PM.
Member
Joined: Jun 2010
Posts: 111
Likes: 1
From: Walnut Creek, CA
Year: 1991
Model: Cherokee
Engine: 4.0 liter
Originally Posted by taxidave
There are a few countries that made Cherokees that were sold in there own territory. China was one of them. Not likely they made it to the States though.
Also Argentina and Venezuela.
CF Veteran
Joined: May 2011
Posts: 1,458
Likes: 2
From: Glendale,Az
Year: 1990
Model: Cherokee
Engine: 4.0l 6Cyl
1990 Jeep Cherokee xj 4.0l Aw4
Recently when at operating tempature of about 210* in AZ with ambient temps of 105*+ coming to a stop my oil pressure gauge drops to 0. If I put it in nuetral and Rev it up it will go back to normal.of around 20-30 at idle. Put it in drive go to next light slow down and it drops to 0 again but engine runs and sounds normal. As soon as light turns green I give it gas.and it goes back to normal. At around 45 an 1500rpm its at about 38-40psi steady.
This does not happen every time, just has been getting more frequent.
I'm assuming its the oil pressure gauge acting up not the actual oil pressure itself. Does anyone have a picture of the area where the oil pressure gauge is and maybe a how to either clean it or replace it?
Any help would be apprrleciated.
Recently when at operating tempature of about 210* in AZ with ambient temps of 105*+ coming to a stop my oil pressure gauge drops to 0. If I put it in nuetral and Rev it up it will go back to normal.of around 20-30 at idle. Put it in drive go to next light slow down and it drops to 0 again but engine runs and sounds normal. As soon as light turns green I give it gas.and it goes back to normal. At around 45 an 1500rpm its at about 38-40psi steady.
This does not happen every time, just has been getting more frequent.
I'm assuming its the oil pressure gauge acting up not the actual oil pressure itself. Does anyone have a picture of the area where the oil pressure gauge is and maybe a how to either clean it or replace it?
Any help would be apprrleciated.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
1990 Jeep Cherokee xj 4.0l Aw4
Recently when at operating tempature of about 210* in AZ with ambient temps of 105*+ coming to a stop my oil pressure gauge drops to 0. If I put it in nuetral and Rev it up it will go back to normal.of around 20-30 at idle. Put it in drive go to next light slow down and it drops to 0 again but engine runs and sounds normal. As soon as light turns green I give it gas.and it goes back to normal. At around 45 an 1500rpm its at about 38-40psi steady.
This does not happen every time, just has been getting more frequent.
I'm assuming its the oil pressure gauge acting up not the actual oil pressure itself. Does anyone have a picture of the area where the oil pressure gauge is and maybe a how to either clean it or replace it?
Any help would be apprrleciated.
Recently when at operating tempature of about 210* in AZ with ambient temps of 105*+ coming to a stop my oil pressure gauge drops to 0. If I put it in nuetral and Rev it up it will go back to normal.of around 20-30 at idle. Put it in drive go to next light slow down and it drops to 0 again but engine runs and sounds normal. As soon as light turns green I give it gas.and it goes back to normal. At around 45 an 1500rpm its at about 38-40psi steady.
This does not happen every time, just has been getting more frequent.
I'm assuming its the oil pressure gauge acting up not the actual oil pressure itself. Does anyone have a picture of the area where the oil pressure gauge is and maybe a how to either clean it or replace it?
Any help would be apprrleciated.

Check the wires plugged into it, clean em out and slap it together with some dielectric grease around the edge (and electric grease like GB Ox-Gard or Sanchem NO-OX on the individual pins if you have it)




