Question about 1998 Ford Expedition

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I have a 98 ford expdtn, check engine light came on, error code indicating missfire on #4 plug. this plug is stuck, dealership says it will cost around $1100 to repair. is this about right on cost?

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If the shop intends to remove the cylinder head because the plug is inaccessible for removal, then the price is determined by their hourly labor rate. The problem itself is that either the plug was cross threaded when installed or no anti-seize compound was put on the threads (necessary because plugs are left in and not replaced as often as they used to be and can seize up, especially in an aluminum head). In any case, the head does not need to be replaced as a heli coil repair kit can be used to replace the damaged thread.
Personally I think the price is a bit high but labor rates and exactly what the shop intends to do as a repair have more bearing on the situation than what I think.
In either case, I hope it turns out well.

Posted on Dec 29, 2010

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