Plug Wires?
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Joined: Oct 2005
Posts: 2,209
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From: Louisville, Kentucky
Originally Posted by jonrob
ok so there are no wires on the cop that need changing? I guess I just need plugs then.
There is a coil sitting directly on top of each spark plug. 8 spark plugs and 8 COPs. Good luck!
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Joined: Feb 2007
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No. That's not what we're saying. There are no high voltage resistor spark plug wires to go bad. It is possible the ordinary low voltage wires & connections that go to the COP to develop problems. These shouldn't be ruled out, but they're part of the motor wire harness-not really consumable/replaceable like conventional spark plug wires.
FORD scheduled maintenance probably gives 100,000 miles between spark plug changes.
I'd suggest searching FTE for 'blown spark plug' & 'changing spark plugs' before attempting to change the plugs. There are horror stories about stripped threads in aluminum heads & valuable suggestions.
There have been a number of comments about the boots under the COP going bad resulting in misfiring & the tip that they're available separately.
Originally Posted by jonrob
ok so there are no wires on the cop that need changing? I guess I just need plugs then.
I'd suggest searching FTE for 'blown spark plug' & 'changing spark plugs' before attempting to change the plugs. There are horror stories about stripped threads in aluminum heads & valuable suggestions.
There have been a number of comments about the boots under the COP going bad resulting in misfiring & the tip that they're available separately.
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