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shuddering engine

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Old Dec 5, 2012 | 07:54 AM
  #1  
skip1701's Avatar
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From: san antonio texas
Year: 1988
Model: Cherokee
Engine: 4.0
Default shuddering engine

Hi all. the nephews 88 xj is now starting on the first try and idles ok, but as soon as it gets under any kind of load, putting it in gear or turning the wheel it shakes real bad and dies. Timing chain? any advice would be awesome. 4.0 with an auto.
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Old Dec 5, 2012 | 08:23 AM
  #2  
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From: Blunt, South Dakota
Year: 97
Model: Cherokee (XJ)
Engine: 4.6 stroker
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check your mounts
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Old Dec 5, 2012 | 09:51 AM
  #3  
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Herp Derp Jerp
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From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
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Motor mounts aren't going to cause a stall with the power steering pump.

Have you checked fuel pressure? I think them Renixes should be at 49 PSI at the rail.

"Now starting on the first try"? What happened and what's been done to it?
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Old Dec 5, 2012 | 09:55 AM
  #4  
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From: Milwaukee, WI
Year: 1987
Engine: Check
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41-43 psi I think...
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Old Dec 5, 2012 | 10:35 AM
  #5  
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Year: 99
Model: Cherokee
Engine: 4.0
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TPS are adjustable on renix, right?
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Old Dec 5, 2012 | 12:07 PM
  #6  
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Engine: 4.6 stroker
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I had a broken mount once, and when it would go into gear, or turn the wheel, it would buck something fierce and die....just sayin', easy enough to check
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Old Dec 5, 2012 | 12:21 PM
  #7  
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From: Valley Park, MO
Year: 1989
Model: Cherokee
Engine: 4.0L Renix Freshly Rebuilt!!
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Originally Posted by VTJeep
TPS are adjustable on renix, right?
Yup! OP might wanna look into that.
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