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Need Misfire Help - Click HERE for Original Thread
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syion
I have been having what some have referred to as rumble strip symptoms when driving. The problem only occurs once every 50miles or so.

I checked the code reader and found codes for misfires on all cyclinders.

I realized that there could be many possible problems so I took it to the dealer. They told me the EGR was out of spec. and they replaced it.

On the way home the problem occurred again generating the same codes.

I am going to replace the plugs even though the likely hood of them generating a misfire on all cylinders is rare - what are eh chances that all plugs or coils are bad.

I am leaning towards clogged EGR ports or some air intake issue.

Can someone please refer me or give me some basic location / part identification informations as to what ports or valves I should clean?

I have read these forms for hours.
The problem lies when you try to search for EGR or other acronyms that are shorter than the 5 letter search requirement.

Thanks for your time.

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