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1992 Ford Explorer - 4.0L Jasper Eng Rough Idle
Posted: Wed Feb 10, 2010 8:50 am
by kceps11
put a new jasper motor in runs rough in park idles fine in drive anyone have any ideas
wires and plugs are fine and so are the fuel injectors
Re: 92 ford explorer 4.0
Posted: Wed Feb 10, 2010 9:00 am
by brianp87
What are your fuel trims
Re: 1992 Ford Explorer - 4.0L Jasper Eng Rough Idle
Posted: Wed Feb 10, 2010 1:04 pm
by Bobt1
Give Jasper a call,
Re: 1992 Ford Explorer - 4.0L Jasper Eng Rough Idle
Posted: Wed Feb 10, 2010 3:17 pm
by brianp87
Doubtful its engine. We need more info if you want any help
Re: 1992 Ford Explorer - 4.0L Jasper Eng Rough Idle
Posted: Wed Feb 10, 2010 11:53 pm
by RevPerformance
Make sure you are using autolite plugs. I had an explorer with brand new bosch plugs in run like crap and misfire. Put in autolites and no issues.
Re: 1992 Ford Explorer - 4.0L Jasper Eng Rough Idle
Posted: Thu Feb 11, 2010 3:18 am
by steven kiser
sounds like a vac leak. these intakes do crack.
Re: 92 ford explorer 4.0
Posted: Thu Feb 11, 2010 5:43 am
by brianp87
brianp87 wrote:What are your fuel trims
Re: 1992 Ford Explorer - 4.0L Jasper Eng Rough Idle
Posted: Fri Feb 12, 2010 8:31 am
by brianp87
Hmm gotta love the ones that ask for help but dont want to provide feedback. so frustrating Im about to give up