Question about 2002 Mitsubishi Montero
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.
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
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
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
If your car is fitted with Manifold Air Pressure sensor (MAP) check that is operating OK. Sometimes if this is as at fault it can send the wrong signal that the engine is running lean and the engine computer (ECU) in turn compensates by injecting extra fuel. The clouds of smoke are unburnt fuel so not only does it look bad but it is wasteful/costly. The fault on a MAP can evolve slowly and therefore evades the computer diagnostics check for some while before being picked up. Also on the list of things to look at are:- 1) the mass air sensor on the air filter ducting 2) the EGR exhaust gas recirculation valve (perhaps needs a thorough clean) 3) the differential pressure feedback exhaust (DFPE) sensor - lies upstream of the EGR but if faulty can combine to lead to errors in fuel injection quantities.
Posted on May 25, 2010
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