Rough Cold Start idle/not running well | Ford Explorer Forums - Serious Explorations

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Rough Cold Start idle/not running well

Bruegger

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Joined
February 1, 2012
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Year, Model & Trim Level
1997 Ford Explorer XLT V6
Hi All,

Well my 97 Explorer 4.0 has been running very rough/missing during the cold mornings (California mornings 45 degrees). As the vehicle warms up it clears up somewhat. I changed the upper o ring seals (3 or them) but it made no difference. Before I tear into it again and change the intake gaskets (to the cylinder heads) I went and had the codes checked..NO CODES registered.
**Anyone have any thoughts? I am capable of changing the full bottom intake gaskets but it is a full days job.
**Also, When I pruchased the O ring gaskets, it came with 6 of them??any reason why..Please help***Thanks
 






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