95 still has miss - Mitsubishi Forum

elkhutr · #1 10-30-2009, 12:07 PM

Ok local dealer has no idea, it went away for one day but it's back, they didn't know if I rebuilt the motor if it would fix it. My maintenance req-light is on. It seems this problem is at low RPM's or when I gas it with the overdrive on it surges or misses unless I keep pressing the gas pedal it goes away. Could it be the ICM? The one day I drove it everything was fine shifted nice, idled fine it was perfect. Also can I use and electrically stuff from a 3.0L Montero to help diagnose the problem or does it have to be a 3.5L?

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dsm1990gsx · #2 10-30-2009, 03:02 PM

Do you have a check engine light on?

Manybrews · #3 10-30-2009, 05:55 PM

might help if you tell us whats under the hood.

elkhutr · #4 10-31-2009, 09:53 AM

no the check engine light is not on. It's a 3.5L.

Manybrews · #5 10-31-2009, 11:21 AM

DOHC or SOHC?

and what has happened up until now? Have you broken a timing belt? How many miles on it? What have you done to it?

you need to give information for people to help.

elkhutr · #6 11-02-2009, 10:24 AM

Injectors cleaned, grounds checks , new coils, plugs, wires, throttle components re-places, 178k miles, timing belts fine, replaced vacuum cv something,

Manybrews · #7 11-02-2009, 07:08 PM

do a compression check.. you will almost assuredly have low compression in one cylinder.