Question about 1992 Mitsubishi Pajero

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Chuffing sound when accelerating, not at idle

In cold or cool weather, this chuffing sound is very prominant, and almost can be compared to a choo choo train...chuffing goes with the speed of the truck, goes faster, the faster I accelerate. The sound slowly dissappears as the pajero warms up, approx, an hour, depending on how cold it is outside. In 20 degree celcius weather, you can't hear it at all. It has just baffled me as to what this is, and if it's serious or not.

Posted by kelly_oco on

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Colin Stickland

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Injector copper washer seal ,best ask a garage its not a easy job ,

Posted on Jun 27, 2017

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redds55

Ricky Peters

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SOURCE: An engine of Mitisubishi

Sounds like a weak fuel pump.Check your fuel pressure and if its not within specs replace pump.

Posted on May 11, 2011

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