Douglas Felsenthal Posted on Feb 01, 2010

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OK, here we go. Ford F150 5.4L 3 Valve - 90K miles - so far all work done at Ford Dealer Engine was indicating rich on ECL codes after a spark plug change for a lean. Initially spark plug change yielded a lean condition, changed plug on #3 again - went to a rich condition. All this on bank #1. 20 hours of dealer diagnostics - finally yielded broken roller lifter on #3 intake, replace roller lifer and cam itself on bank one. Now runs nicely at speed, but intermittently engine drops to a low idle at stop sign etc. below 500rpm, turns rough, if left long enough throws a P0012 code. Interestingly, if in this condition a smooth speed increase to 2K RPM and gentle relax, condition will go away, can idle smooth for an hour without mishap. But go out on freeway a few miles, come to a stop may go back into poor idle mode. We've spent $3K on this over the last 45 days, Ford is being a putz, looking for suggestions. Out of frustration replaced bank #1 VCT last week. Not much difference. Any help would be appreciated. Douglas

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Posted on Feb 01, 2010

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Need to put it on a smoke machine to check for vac leak if no leak sound like egr valve sticking open

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2004 F150

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I have codes p0202 p0203 p2196, when i go to ford dealer they told me i need a new engine because cylinder #2 is low in compression only 17%, but the report they gave me doesn't show the code p2196.

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2004 F150

I have codes p0202 p0203 p2196, when i go to ford dealer they told me i need a new engine because cylinder #2 is low in compression only 17%, but the report they gave me doesn't show the code p2196.

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I have codes p0202 p0203 p2196, when i go to ford dealer they told me i need a new engine because cylinder #2 is low in compression only 17%, but the report they gave me doesn't show the code p2196.

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