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engine miss

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Old May 25, 2011 | 10:38 AM
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losdiaz
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engine miss

just recently on 02 expedition with 4.6 liter i had engine light for cylinder 1 and 2 miss and i also was losing coolant so thought it was head gasket but as i started tearing it down i noticed intake manifold bolts 3 of em were loose

the question is should i just replace intake gaskets and put back together? or should i proceed with head gasket and is this common for bolts to come loose?
 
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Old May 25, 2011 | 08:19 PM
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Do a compression test on cylinders 1 & 2 and maybe 5 & 6 for comparison. If the compression is good on 1 & 2 I would assume the loose bolts were the problem.
 
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Old May 25, 2011 | 09:53 PM
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engine miss

compression checked out good i put engine back together and runs good no engine light the thing is i had the battery un hooked for a week and at idle its a little unstable but not bad do u think its trying to relearn itself because i checked for vacumm leaks and if it was a big problem the ecm should set a code and if it is a relearn issue how long will take to stabilize and at idle with ac off it shows 30% load in park is that normal
 
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