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skipping 4.0

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Old 05-13-2011, 08:15 PM
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Default skipping 4.0

I have a 1995 Grand Ckerokee, 4.0, auto, 130,000 miles. When its cold and a few other times it runs great. BUT like today after 2-3 miles it is just mean and nasty. It idles but not right. More then that just dosen't want to go. Spits and pots. Didn't get it to 20mph coming back till almost here and than ran fine. Its like a open EGR valve, bad cap, or map. fuels ok. THe last owner I found out put $2000. and never got it to go and junked it. Theres got to be some simlpe thing some where. Its not just one or two cly. Its all of them acting up. Mike
Old 05-13-2011, 08:30 PM
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Egr would cause that, pull it and see if it is sticking open. Also seafoam it. Do a search if u dont know what it is.
Old 05-14-2011, 12:53 AM
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No EGR on the 4.0.
Old 05-14-2011, 01:28 AM
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Originally Posted by Bustedback
No EGR on the 4.0.
I believe the older ones do I have a spare 4.0 out of a Comanche and it looks to have egr
Old 05-14-2011, 01:01 PM
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Originally Posted by zkeifer
I believe the older ones do I have a spare 4.0 out of a Comanche and it looks to have egr
Might be an EGR on 1990 and older RENIX XJ and MJ, but we're dealing with a 95 ZJ, no EGR on the 4.0.
Old 05-14-2011, 03:05 PM
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Welcome to CF Mike.
Pull the distributor and check the drive on the bottom of the shaft. It might be nearly sheared off causing the issues you're experiencing.JMO
Old 05-14-2011, 05:53 PM
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Originally Posted by Bustedback
Might be an EGR on 1990 and older RENIX XJ and MJ, but we're dealing with a 95 ZJ, no EGR on the 4.0.
Gotcha
Old 05-16-2011, 05:52 PM
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any update?? mines doin somethin similar
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