Question about 2001 Mitsubishi Montero

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Have a 4M41 engine in the 2007 mitsubishi triton and when under acceleration between 2000 - 2600 rpm the engine hunts or surges and then clears after 2600 rpm. It is more noticeable in 3/4/5 gears only because it spends more time between the rev range, what could be the cause ?

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I had a similar "hesitation" on my 4m40 engine and found it to be resolved when I changed my fuel filter. Gained power and slight economy as well.

Posted on Oct 28, 2011

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It needs a programming check of the accelerator pedal via ecu of the engine. All previous activity of the system is recorded in the ecu which can be corrected in the dealership of mitsubishi.

Posted on Aug 20, 2011

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