Question about 2002 Mitsubishi Montero

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3.2 DID Pajero/Montero diesel injection problems

I have just replaced the injector nozzles and glow plugs in my 3.2 DID Pajero (140 000km). Hot starts are taking up to 6 secs followed by a cloud of black smoke. Cold starts are normal. Other than this, consumption is good and power normal.

Is this a leaking injector, a pump problem, or something else? I'm very worried about diesel getting into the sump oil.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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stormbrewin
  • 426 Answers

SOURCE: Coolant filling up overflow bottle

You may need to ask AAA to put a radiator pressure tester on the resevoir bottle and pump it up to operating pressure(Pressure cap rating) and see if it over pressurises while it is running at operating temp,rev engine up and down and watch what the testers pressure readings do,it should move up and down in sync with the water pump.If the pressure keeps building i would have to believe that combustion chamber gases are over pressurising your cooling system.Also test the pressure cap is functioning within factory specs.

Posted on Oct 30, 2008

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junmag
  • 175 Answers

SOURCE: Hard to start, 2.8 TD Pajero 1996

warm up the engine and turn it off then try to turn the crankshaft pulley with a suitable wrench. if its too hard to turn by hand then the bearings might be too tight.

Posted on May 28, 2009

  • 1 Answer

SOURCE: pajero diesel when starting from cold, runs for

It's definitely your injection pump seals mate.....common prob with these engines. My 1994 2.8TD was exactly the same until I had the sealls replaced. I went for the complete reconditioning and not just the main seal and it cost me £519 in total. Dunks

Posted on Nov 02, 2009

  • 3 Answers

SOURCE: 4M40 engine lacking power and blowing black smoke.

http://www.delicaclub.com/load.php?id=20

Install the egr mod, will stop it smoking in no time
Delica owner...

Posted on Dec 21, 2009

  • 243 Answers

SOURCE: how do i know how much oil 2 put in my sump

just fill it up till the top mark on the indicatorstick.

Posted on Feb 21, 2010

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8)

I just answered your other question about that Pajero here:

http://www.fixya.com/answer/answerpageslideview.aspx?ctg=0&fml=0&brd=0&thid=21201933

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Glow plugs do not "fire". You may be confusing the function of glow plugs as analagous to spark plugs in a gasoline engine; the purpose of glow plugs is to heat the air-fuel mixture to a temperature that will support the diesel auto-combustion process. The diesel process is not one in which the air-fuel mixture is ignited via spark like a gas engine; rather, the air-fuel mixture undergoes much higher compression and spontaneously explodes, generating the combustion in a self-sustaining manner. High compression produces much higher heat, but before it can begin, heat must be introduced into the system to get it started.

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Wont start when hot!


hello there, wow my dream p-up. nissan pathfinder 4x4,  unfortunately i have to settle with my nissan navara truck. anyways, the possible problems would be the injectors and injection pump. injectors are really direct on the combustion chamber so everytime the engine runs it is severely exposed to very high temperatures. the nozzle tips are the ones very much abused. the injectors have 2 seals. the first one which hugs the body of the injectors which is usually made of hard copper and the 2nd is called the chamber washer which is a stainless steel type concaved washer which serves as the nozzle tip seal and heat nozzle tip heat dispenser. if the nozzle tip floats there is a tendency that the tips are flame red due to heat thus, diesel is boiling to the point of turning to vapors enough to push the remaining fuel back to the injection pump when you shut the engine. then the one way valves of the injection pump comes into play. the valves might be weak and due to the high pressure, fuel slowly creeps back into the pump body. hope this helps.

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