Question about 2004 Mitsubishi Montero

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Stalling without warning

My 1983 RB 1400 Colt, is generally running fine at idle and fast driving.
But sometimes when i am pulling away from traffic lights at times there seems to be a splutter or blind spot in the fuel supply.
My mechanic has changed Filters, Points, Plugs and timing belt, but the problem seems to be getting more frequent. He suggests i get a new car, but i love this one and in spite of its age its in good condition and there is a genuine only 61,000km on the clock.
Thanks for any help....Jas
This sounds like a classic timing drop issue. While not being familiar with your particular vehicle, I assume that the distributor has a vacuum advance. With the car idling, remove the hose from the advance, attach a vacuum gauge to the hose,note reading, slowly increase engine speed and watch the gauge. If vacuum increases with engine speed, you are in good shape, and need to check the advance mech itself. If you have a high reading at idle that decreases as engine speed increases. then the hose is on the wrong port on the carb, or throttle body as the case may be. If there is no vacuum, or very little movement of the gauge. try cleaning that particular port to gain proper vacuum flow. BTW, one of the best $20 you could spend would be to buy new vacuum hose and spend an afternoon replacing each of those hoses, as rubber hose ages, it gets brittle and breaks or leaks, and most people who drive older cars are just amazed that I can 'FIX' all of those things that don't work right anymore. but I charge more than $20 !!

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Good luck

Posted on Aug 13, 2008

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I suppose that your fuel pump is mechanical type (not electrical).
in this case I would prefer to remove it and inspect its diaphragm or replace if spares available.

Posted on Aug 05, 2008

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Hi,

Have to agree on the vacuum advance and possible mis-positioning of the vacuum line in the card.

If I may add, likewise pls have your mechanic check the inside of the distributor. As the RPM increases, so does the vacuum which in turn advances the contact point action. The inside including the movable base plate of the contact point might just need a bit of cleaning and a little bit of lubrication. In the same distributor in some instances, there would be a plastic knob inside a clear plastic cover. This is to fine tune the vacuum advance which actually is some sort of regulator.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Aug 05, 2008

  • Louie  Role
    Louie Role Aug 06, 2008

    Additionally, in some versions of the distributor, there is a mechanical advancer composed of two formed weights with 2 springs to keep them in place. Usually found underneath the movable base plate of the contact point. They serve the same purpose (advance the timing) only by centrifugal force other than the vacuum suction.

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Vehicle stalls out while driving, due to overheating problems

ELECTRICAL SYSTEM : IGNITION problems/complaints for MITSUBISHI ECLIPSE


ENGINE AND ENGINE COOLING : COOLING SYSTEM problems/complaints for MITSUBISHI ECLIPSE

try this link this may help to solve your problem

Posted on Aug 05, 2008

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