When a valve is burnt how do the spark plugs look

Asked by Jan 22, 2014 at 07:30 AM about the 2000 Mitsubishi Montero Sport LS

Question type: Maintenance & Repair

I have a 2000 Mitsubishi
Montero and I just changed the
plugs and wires. I found two
plugs with this oily grimmy
substance packed in the end of
them. I have a random miss
code. After changing the plugs
and wires the Misses still there
.so I pulled a wire at a time off
the coilsto check in see if a
coral was not firing. And the
coil that runs number three a
nd number 6didn't change the
motor sound whatsoever.
Could it be I just need a coil
instead of having brunt valves?

2 Answers

9,845

Regardless of the valve conditions in the head, no spark needs to be addressed. Your valves/seats my have or may be failing but you should still have spark. A compression test on your cylinders will tell you the coindition of your pistions and valves. For the spark issue it could be a few things. The first thing that I would try is to swap the NFG coil with a good one. If the non working plugs fire and the other pair quits working then I would change the coil. If the same plugs don't work after the swap it will be a electrical issue. Swap the coils and let me know and I will look up your mochine to see what it has for a ICM.

1 out of 1 people think this is helpful.
5,995

it may not be the coil that is bad,, the PTU (power transfer unit) could also be bad as well,,, but I would start with the coils and test them and see if that's the problem,, you can test them with a voltmeter

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Mitsubishi Montero Sport Questions

Mitsubishi Montero Sport Experts

#1 Daniel Foster
Daniel Foster
Reputation 590
#2 Jared Chase
Jared Chase
Reputation 410
#3 Tom Demyan
Tom Demyan
Reputation 320
View All

Related Models For Sale

Used Mitsubishi Montero
3 Great Deals out of 112 listings starting at $1,900
Used Toyota 4Runner
258 Great Deals out of 20,716 listings starting at $1,995
Used Nissan Pathfinder
287 Great Deals out of 22,346 listings starting at $2,250
Used Ford Explorer
816 Great Deals out of 75,232 listings starting at $750
Used Honda CR-V
795 Great Deals out of 60,071 listings starting at $900
Used Toyota RAV4
597 Great Deals out of 70,186 listings starting at $2,350
Used Jeep Grand Cherokee
1,032 Great Deals out of 73,520 listings starting at $950
Used Honda Accord
708 Great Deals out of 88,066 listings starting at $699
Used Honda Civic
517 Great Deals out of 88,834 listings starting at $1,499
Used Toyota Corolla
696 Great Deals out of 72,723 listings starting at $600
Used Mitsubishi Eclipse
26 Great Deals out of 1,330 listings starting at $1,500