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Jeep sometimes doesn't start/p0306

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Old Jan 31, 2013 | 04:33 AM
  #1  
RyXj's Avatar
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Year: 1997
Model: Cherokee
Engine: 4.0L
Default Jeep sometimes doesn't start/p0306

Hi everyone, the problem I am having could be caused by two different issues and I would love any assistance on these issues.

1. Jeep sometimes won't start...I'll start it from the house, let it warm up then drive it to the store and when I go to start it will not start and the only way to get her to start is if i wait OR shake the shifter.

2. I'm getting a P0306 check engine light code and I have a misfire sometimes on the 6th cylinder. I took it to a shop and they said it could need a valve job.

Any suggestions would be GREATLY appreciated! Thanks - Ryan
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Old Jan 31, 2013 | 07:07 AM
  #2  
RTorrez1's Avatar
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Joined: Sep 2011
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From: Riviera, Texas
Year: 1998 Sport
Model: Cherokee
Engine: 4.0
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Your no start problem sounds like you have a bad or dirty NSS (Neutral Safety Switch) Since you say that you have to move the shifter.
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Old Jan 31, 2013 | 07:35 AM
  #3  
Muaddib420's Avatar
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Clean your NSS and change your spark plugs (champion coppers gapped to 0.35) will get you started cheaply.
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Old Feb 1, 2013 | 05:22 AM
  #4  
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Thanks guys, i will try cleaning the nss and as for the misfire ive recently changed the spark plugs.
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Old Feb 1, 2013 | 06:08 AM
  #5  
cruiser54's Avatar
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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Here's someone else having the same issue with P0306.

https://www.cherokeeforum.com/f2/p03...t-stop-159990/
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