Rough Idle
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Joined: Dec 2003
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Checked all plugs and pulled, dried with air compresser, clean out throttle with cleaner, cleaned MAF, new PCV and still rough idle.
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FTE Leadership Emeritus
Joined: Sep 2000
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From: Stephensville WI
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Senior User
Joined: May 2007
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From: Amsterdam, NY
funny cause mine did. and i took my truck to work and plugged the good ol' snap on into it. and i pulled up a misfire on 5. and thats when i was told that there were no plug wires and I never realized that when i bought the truck. and I really dont wanna pay $125 for the coil and crap. but I'm gonna have to.
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
Sounds like you have at least one bad COP. The Autozone code reader probably couldn't read precodes.
You need to buy a COP, use it to replace the existing COPs one at a time until the miss goes away.
Also, in case no one has told you, washing your engine is not a good thing to do to a Ford modular engine.
You need to buy a COP, use it to replace the existing COPs one at a time until the miss goes away.
Also, in case no one has told you, washing your engine is not a good thing to do to a Ford modular engine.