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00 Montero Sport spark plug wire arc


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LongevitySport
New User

Jan 28, 2017, 7:32 AM

Post #1 of 4 (632 views)
00 Montero Sport spark plug wire arc Sign In

I've got a 2000 Mitsubishi Montero Sport 3.0L 308,000 miles. Yesterday on my way to work out started a dead miss. Limped it to work and I thought it had a fouled plug. The valve guides are shot and if it sits idle for a few it starts pumping out smoke. Limped it back home, started to remove the intake and I saw that wire 3 had an arc. So it turns out I drove it about 80 miles with an arc. I moved it so it couldn't arc, started it and still had a miss. So my question is, did I fry the 3-6 coil pack?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 28, 2017, 8:11 AM

Post #2 of 4 (621 views)
Re: 00 Montero Sport spark plug wire arc Sign In

If you haven't yet, you soon will if you don't get those wires replaced.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



LongevitySport
New User

Feb 1, 2017, 11:03 AM

Post #3 of 4 (593 views)
Re: 00 Montero Sport spark plug wire arc Sign In

I changed the plugs and wires but it changed nothing. Still has a no code misfire. I know the coils are firing. BUT I can take the plugs to each coil, reverse them, and it runs exactly the same. The only thing I can think of is crankshaft or camshaft positioning sensor. But that's a total shot in the dark. I have no clue.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Feb 1, 2017, 11:42 AM

Post #4 of 4 (587 views)
Re: 00 Montero Sport spark plug wire arc Sign In

The truck has 300K on it. Have you even taken a compression test?



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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