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Sputter?

Old Jul 18, 2014 | 08:41 PM
  #1  
emt_hawkins's Avatar
Thread Starter
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Joined: Jan 2013
Posts: 66
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From: Mesick, MI
Year: 1999
Model: Cherokee
Engine: 4.0 6 Cylinder
Default Sputter?

Hey all,

Need some help for a friend of mine. He has got a 96 jeep cherokee straight 6 4.2L.

Only when he is driving, when he hits the throttle, it pops and backfires a bit. Then the tach drops, it sputters, then goes back to normal in the matter of a split second.

Any ideas for him?
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Old Jul 18, 2014 | 08:49 PM
  #2  
tracyk's Avatar
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Joined: Apr 2014
Posts: 247
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From: Ohio
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Originally Posted by emt_hawkins
Hey all,

Need some help for a friend of mine. He has got a 96 jeep cherokee straight 6 4.2L.

Only when he is driving, when he hits the throttle, it pops and backfires a bit. Then the tach drops, it sputters, then goes back to normal in the matter of a split second.

Any ideas for him?
When I bought my 99, it did that with every single start but only for first couple of miles. Replacing O2 sensors cleared up my prob immediately
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Old Jul 19, 2014 | 07:17 AM
  #3  
RTorrez1's Avatar
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Joined: Sep 2011
Posts: 4,172
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From: Riviera, Texas
Year: 1998 Sport
Model: Cherokee
Engine: 4.0
Default

Originally Posted by emt_hawkins
Hey all,

Need some help for a friend of mine. He has got a 96 jeep cherokee straight 6 4.2L.

Only when he is driving, when he hits the throttle, it pops and backfires a bit. Then the tach drops, it sputters, then goes back to normal in the matter of a split second.

Any ideas for him?
Tell him to find out what engine he has. Because the Cherokee never came with a 4.2
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Old Jul 19, 2014 | 09:16 AM
  #4  
salad's Avatar
Herp Derp Jerp
Premium Member
 
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Default

4.2L huh. Sounds like carb trouble.

Engine swap or typo?
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