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Cracked Head

Evan Schneider

New Member
Joined
January 25, 2003
Messages
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City, State
Kalispell, MT
Year, Model & Trim Level
'00 XLS
My '00 XLS 4.0 OHV 110K has been exhibiting the following symptoms recently:

Last couple of months it has idled rough when first started. It would smooth out within a few seconds.

Plugs and wires are recent, tried cleaning maf, iac, seafoam.

A few days ago the problem got much worse and didn't go away even after it warmed up.

I noticed that the temp guage was fluctuating rapidly back and forth between the low and middle side of normal range.

Finally the CEL came on and indicated a misfire on the #3 cylinder.

I popped the hood and noticed that the coolant overflow tank was dry.

The oil looked fine and the coolant in the radiator didn't look contaminated.

I pulled the heads and found a crack between the valves in the #3 combustion chamber.

I ordered some new aftermarket heads from e-bay but haven't recieved them yet. I'll post as soon as everything is installed and the Explorer is back on the road.

I would post some pics but apparently I'm not allowed to post attachments.

Anyway, I just wanted to share this info in case someone is having the same problems.
 






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