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by RevPerformance
Wed Feb 10, 2010 11:53 pm
Forum: Ford Trucks
Topic: 1992 Ford Explorer - 4.0L Jasper Eng Rough Idle
Replies: 7
Views: 4565

Re: 1992 Ford Explorer - 4.0L Jasper Eng Rough Idle

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.

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