Cop Problem Again
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Senior User
Joined: Feb 2004
Posts: 126
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From: CANADA
Originally Posted by Big Orn
I take from your post, I got her back, that you had this done. Did you get a chance to observe the replacement procedure? I was thinking: There is a small brass bushing on the COP flange that stops the attachment screw from distorting the seal when tightened. Maybe there's a burr or deformity in that area that prohibits the rubber from sealing around the plug cavity?
In my way of thinking, there has to be something allowing water/mud to contaminate the coil connectors - either at the spark plug contact or at the outer electronics area.
In my way of thinking, there has to be something allowing water/mud to contaminate the coil connectors - either at the spark plug contact or at the outer electronics area.
Senior User
Joined: Jan 2004
Posts: 141
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From: Rockford, IL
I would question something else... not istallation procedure. Measure voltage going to each coil and make sure that they're all the same. Next time it happens, move another coil to that spot and put the new one in its place. See how long it takes to go bad. Makes no sense that the same one keeps going.
New User
Joined: Mar 2004
Posts: 1
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From: TN
antifreeze is my problem
I have been having misfires on the passenger rear COP. My issue is antifreeze in the COP/sparkplug hole. If I blow it out with air and change the plug it runs fine. But it always returns. First I was told it was from a heater hose located above the hole. I checked, that wasn't an issue. I checked the TSBs and found one that said there is an issue with certain 5.4s that occasionally leak antifreeze from the intake gasket. I am replacing the gaskets tonight. I'll let you know if it made a difference.
Mike
http://www.alldatadiy.com
Mike
http://www.alldatadiy.com
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apalo187
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