Plug Wire question

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Deanna L. Bowman and Scott T. Indresano - 21 Jul 2004 07:03 GMT

My future brother in law has a 2000 5.0 V8 Explorer. It had been running
rough and had a check engine light on. I changed out the plugs, but did
not do the wires on the advice of the man at Napa. It still was running
rough, but better than before. My fiancee's father took it to the dealer on
Monday, and they changed 1 defective wire. Is this just asking for trouble,
not replacing the whole set... This vehicle has 96000 miles on it and the
wires are originals.

Thanks!!

Scott

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Paul Scrutton - 21 Jul 2004 14:17 GMT

I'd change them all...it's not like they are expensive. And 96000 miles on a
wire set is a good length of time.

Paul

> My future brother in law has a 2000 5.0 V8 Explorer. It had been running
> rough and had a check engine light on. I changed out the plugs, but did
[quoted text clipped - 7 lines]
>
> Scott

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gordo - 22 Jul 2004 05:00 GMT

> I'd change them all...it's not like they are expensive. And 96000 miles on a
> wire set is a good length of time.

Speaking of length of time.......
What would be the appropriate time to change plug wires?
Is it determined by mileage or years? I have heard conflicting reports.
My Explorer is a 96' 4.0L with original wires and plugs but only 40k miles on it.
Motor still seems to run fairly smooth, but I can't remember how it ran when new.
Should I be changing mine about now too?

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