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HELP! Vibration and Power loss...

Old Jun 16, 2012 | 04:07 PM
  #1  
CroxyXJ's Avatar
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From: Westminster, MD
Year: 1996
Model: Cherokee
Engine: V6 4.0
Default HELP! Vibration and Power loss...

Hey guys,

Looking for some help. This is my first post btw so be gentle.

Anyway, over the past few months I have noticed a vibration and power loss when my engine hits higher RPM's. The vibration definitely comes from the engine as I can feel it in the pedals only and I can feel it losing alot of power once the vibration starts. I don't have a tach to I dont know exactly what RPM's it occurs at but it is above cruising rotations. It is most noticeable during acceleration.

It does it in all gears. Even in neutral. A mechanic friend of mine said that the engine may be misfiring. I wanted some jeep guys to put in their two cents though. Hopefully by the time I'm done on this thread I will have a dollar.

Thanks a ton in advance!
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Old Jun 22, 2012 | 11:52 PM
  #2  
Lyon's Avatar
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1st thing I would do is check the spark plugs and wires. Put in the Champion plugs for best results. A full tune up would benefit you the most if it is in fact a misfire. You could probably do the whole tune- up for about $40 when all is said and done.
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Old Jun 23, 2012 | 12:12 AM
  #3  
xjchris's Avatar
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Model: Cherokee
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^^^ that and......
check your atf level (if you have a auto)

hit your cat and see if it sounds loose inside.
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Old Jun 23, 2012 | 12:35 AM
  #4  
ZINGGG's Avatar
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From: Seal Beach, CA
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Default

Originally Posted by Lyon
1st thing I would do is check the spark plugs and wires. Put in the Champion plugs for best results. A full tune up would benefit you the most if it is in fact a misfire. You could probably do the whole tune- up for about $40 when all is said and done.
Do this and report back. I bet your issue will be cured
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Old Jun 23, 2012 | 07:16 AM
  #5  
VTJeep's Avatar
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From: 802
Year: 99
Model: Cherokee
Engine: 4.0
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Any codes?
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