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2005 Ford Five Hundred

Question: Have p0306 and p0316 error codes.

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rjemtrud, Fargo, ND, January 19, 2012, 06:53
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Have replaced coil, spark plugs, injectors, etc... You name it, it's probably been replaced. Horrible gas mileage, smells rich, rough idle, car will quit as a stop sign, within the first 7 mins of starting (idle), it will shut off. Help!!!noone can seem to figure out the problem and I am very frustrated with having to spend money that is not actually needed. I could have purchased a new engine for as much money I have put into "fixing" the problem that still exists.

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  • Answer #1

    mastertech6371 January 19, 2012, 08:57
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    i would start with a compression test. this should have been done first before throwing anything at it.

    Roy

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    rjemtrud, January 19, 2012, 10:13
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    That was completed... dealers comments: the compression test # 6 cylinder is low & performed an actual compression test, #4 200 psi, #5 195 psi, #6 85 psi and performed a culinder leakage test on #6, it has 80 psi leakage out of the exhaust, removed the valve cover & inspected the springs, they are in good shape, reassembled and gave back to me.

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