Question about 1999 Ford Explorer

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Tips on changing plug wire

I am having a misfire on #4 cylinder. I changed all the plugs and wires last year but I could not get to the passenger rear wire (#4) so i just changed the plug and not the wire on this cylinder. I now have a misfire on #4 so I am assuming it is the wire. Any tips on the best way to get this wire unclamped and removed? I am having a hard time getting anything down to the wire clamp to release it.

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  • Tina Campbell Jan 04, 2009

    I have the same problem but I have changed the plugs and wires. What else can I try



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  • 68 Answers

Twist back and forth while yanking then i would also suggest that you give it a complete tune up. Change the cylanoid because that might be the reason for the misfiring also

Posted on Nov 17, 2008


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It has a misfire ,we changed the plugs and the coil pack and wires still has a misfire what else could it be

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Kind of odd it would be 1 and 3, but that is one right after the other in the firing order of, you have a single coil? So you have a distributor-examine closely the distributor cap and rotor if those were not changed too, with the plugs and wires. Look for damage, little black tracks that indicate shorting of the spark, maybe damage at the electrode tips on the inside of cap on 1 and 3 plug wire towers. Most people change the cap and rotor when doing the plugs and plug wires.
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I own a 2002 mustang with v 6 eng.service eng light came on. pep boys retreived fault code that reads p0304.eng has new plugs and wires

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My 1999 crown victoria is misfiring at high speeds even after i changed all coils and put the right gapped spark plugs in i had it checked on a scanner and it said cylinder 5 was misfiring so they took the...

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