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shuddering engine

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Old 12-05-2012 | 08:54 AM
  #1  
skip1701's Avatar
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Joined: Aug 2012
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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.
Old 12-05-2012 | 09:23 AM
  #2  
Rogue4x4's Avatar
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From: Blunt, South Dakota
Year: 97
Model: Cherokee (XJ)
Engine: 4.6 stroker
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check your mounts
Old 12-05-2012 | 10:51 AM
  #3  
salad's Avatar
Herp Derp Jerp
 
Joined: Nov 2011
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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?
Old 12-05-2012 | 10:55 AM
  #4  
Gee oh Dee's Avatar
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From: Milwaukee, WI
Year: 1987
Engine: Check
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41-43 psi I think...
Old 12-05-2012 | 11:35 AM
  #5  
VTJeep's Avatar
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From: 802
Year: 99
Model: Cherokee
Engine: 4.0
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TPS are adjustable on renix, right?
Old 12-05-2012 | 01:07 PM
  #6  
Rogue4x4's Avatar
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From: Blunt, South Dakota
Year: 97
Model: Cherokee (XJ)
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
Old 12-05-2012 | 01:21 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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