HELP With Plug Problem
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HELP With Plug Problem
I come to you for help. My sister-n-law owns an 02 or 03 expy with the 4.6L in it. It is 2 wheeldrive. The problem she is having is the Number 8 cylinder keeps misfiring. My brother has replaced all the plugs and has replaced coil packs on #7 and #8. What could possibly keep making the number 8 cylinder misfire?
He is thinking it is a fuel issue, he said it was the last cylinder to get fuel. My sister-n-law tells me that it misfires when she tries to pass. She said her check engine light flashes on and off when it is misfiring. I think my brother also said he changed fuel filter.
Any Ideas? Please help us.
He is thinking it is a fuel issue, he said it was the last cylinder to get fuel. My sister-n-law tells me that it misfires when she tries to pass. She said her check engine light flashes on and off when it is misfiring. I think my brother also said he changed fuel filter.
Any Ideas? Please help us.
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Originally Posted by the4by4freek
is it throwing a check engine light? If so pull the code and it will tell you what cylinder it is. I chased a miss in my old Ex for almost a week. It was #3 coil.
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Joined: Sep 2002
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From: North Carolina
PCV elbow is a good place to start. Right at the back of the manifold is where it will crack. You cannot see it but if you run your hand along it you can definately feel it. MAF wouldn't give those symptoms. Mine had a bunch of false codes jump up. They ranged from misfires on different cylinders to crank angle sensors. I finally drove the S#$T out of it and made it throw a solid code. It was #3 coil.
