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Old Jun 8, 2013 | 05:28 PM
  #1  
JCJimmyD's Avatar
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From: N.W. Ohio
Year: 1996
Model: Grand Cherokee
Engine: 4.0 high output
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My zj has no power and my oil pressure dogs to 0 when I stop at a red light.
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Old Jun 8, 2013 | 06:06 PM
  #2  
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From: shawnee,ks
Year: 1993
Model: Cherokee
Engine: 4.0
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Sounds like rebuild time to me
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Old Jun 8, 2013 | 06:29 PM
  #3  
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From: N.W. Ohio
Year: 1996
Model: Grand Cherokee
Engine: 4.0 high output
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The motor of sound
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Old Jun 8, 2013 | 09:43 PM
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From: shawnee,ks
Year: 1993
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Engine: 4.0
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What?
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Old Jun 8, 2013 | 10:06 PM
  #5  
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From: N.W. Ohio
Year: 1996
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The motor is sound. So sorry I have fat thumbs. If you not gonna even offer any useful advice than don't bother
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Old Jun 8, 2013 | 10:08 PM
  #6  
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From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
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Originally Posted by JCJimmyD
The motor is sound. So sorry I have fat thumbs. If you not gonna even offer any useful advice than don't bother
Don't get offended at what he typed... You posted essentially the most vague description of a problem I have ever seen.

Form a few simple sentences describing the problem in more detail and maybe someone could help you.
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Old Jun 8, 2013 | 10:16 PM
  #7  
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From: N.W. Ohio
Year: 1996
Model: Grand Cherokee
Engine: 4.0 high output
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That's the exact problem that I described. Pedal to the floor no power. Oil pressure drops to 0 when stopped.
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Old Aug 10, 2013 | 11:16 PM
  #8  
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From: Cedar Rapids, Iowa
Year: 1994
Model: Grand Cherokee
Engine: 4.0 L
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Originally Posted by JCJimmyD
That's the exact problem that I described. Pedal to the floor no power. Oil pressure drops to 0 when stopped.
Same problem with my 96 zj. Was told because the engine was so old (230,000) the engine was experiencing blow by. I switched to a thicker oil and started using oil treatment and it kept pressure. It was particularly bad in the summer.
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Old Aug 11, 2013 | 05:42 AM
  #9  
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From: N.W. Ohio
Year: 1996
Model: Grand Cherokee
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Oh I found the problem. Apparently my wife over heated the Damn thing and cooked the oil. I changed it out and seems to be fine for now. As for no power I found that the oxygen sensor wires rubbed on the From drive shaft and ground out. Throwing the transmission into lymph mode. It wasn't shifting down into 1st gear. I changed the sensor and after an hour of riding a bucking bull so to speak the tranny started working like it is speed too.
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Old Aug 11, 2013 | 03:17 PM
  #10  
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From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
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There is a bracket on the edge of the oil pan that's supposed to hold the 02 sensor wiring connector. You can use a wire tie to secure it.

Do a compression check. The first thing to go in a serious overheat is the ring's tension. If you're getting blow-by, it will show up as oil in the CCV valve or oil smoke in the exhaust. Hopefully, she didn't toast it too much. If this is a 4.0, it's probably okay.
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Old Aug 11, 2013 | 06:56 PM
  #11  
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From: N.W. Ohio
Year: 1996
Model: Grand Cherokee
Engine: 4.0 high output
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Yup used a good old zip tie. I'm not getting any smoke from the exhaust. I have been keeping an eye on it. So far she's running great. I think I really lucked on this one
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Old Aug 11, 2013 | 11:42 PM
  #12  
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From: South Florida
Year: 1998
Model: Grand Cherokee
Engine: 5.2L
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Originally Posted by 94XjSport94
Don't get offended at what he typed... You posted essentially the most vague description of a problem I have ever seen.

Form a few simple sentences describing the problem in more detail and maybe someone could help you.
ahha that's why I clicked on this link. I figured it'd probably be something really vague. Something like, "help, something's happening somewhere with something!"

I agree - next time be more descriptive in the subject heading bro. Don't be lazy when asking for help.

Originally Posted by JCJimmyD
Oh I found the problem. Apparently my wife over heated the Damn thing and cooked the oil. I changed it out and seems to be fine for now. As for no power I found that the oxygen sensor wires rubbed on the From drive shaft and ground out. Throwing the transmission into lymph mode. It wasn't shifting down into 1st gear. I changed the sensor and after an hour of riding a bucking bull so to speak the tranny started working like it is speed too.

LOL Lymph Mode!


Last edited by po0dingles; Aug 11, 2013 at 11:50 PM.
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Old Aug 12, 2013 | 06:10 AM
  #13  
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From: N.W. Ohio
Year: 1996
Model: Grand Cherokee
Engine: 4.0 high output
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I described exactly what was Goin on at the time. There was nothing else to describe. I wasn't being vague. There were no other symptoms to describe.
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Old Aug 12, 2013 | 03:43 PM
  #14  
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From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
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Don't you just love it when you make a typo or spelling error and somebody jumps on it? Although I hate it when someone used a cell phone and there is no punctuation.
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Old Aug 12, 2013 | 09:02 PM
  #15  
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From: South Florida
Year: 1998
Model: Grand Cherokee
Engine: 5.2L
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Originally Posted by dave1123
Don't you just love it when you make a typo or spelling error and somebody jumps on it? Although I hate it when someone used a cell phone and there is no punctuation.
lol I'm just having fun. I would have refrained if it was a rare occurrence but it wasn't and I thought the slip was humorous too.
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