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We have a 3.2 DiD Misubishi Pajero and I think the injector pump is playing up. The car has just started surge and run rough and then starts to smoke like to much diesel is getting into the motor white smoke. I have replaced the fuel filter as at first I thought maybe we had some contaminated fuel but I dont think this is the case as I have checked inside the fuel tank and the filter inside the tank as well and all looks clean and good. Any thoughts?

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"Hi im thinking about buying a mitsubishi pajero 3.2 DID, went i took it for a drive there seemed to be a small amount of white smoke. Explained as just because the vehicle had been sitting for a while which is quite possible. However due to the engine overheating recently the water pump and thermostat have been chacnged. This sounds scary as there might be damage to the head gasket. whats should i do is there any easy way to test this?

Posted on Sep 21, 2011

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You generally only get white fuel smoke from a diesel when one or more cylinders aren't firing. If it were injecting more fuel than can be burned into a cylinder that is firing you'd get black smoke. You can get gray smoke from a cylinder that is firing cold or late, but blue obnoxious smoke is more common with late injector pump timing. Dirty/failed injectors also generally make a rude blue smoke.

Run a can of Diesel Kleen through it. If you can't get it where you are call a local truck service and ask what they recommend for cleaning the pump.

Check and keep watch on the oil and coolant- white smoke from a warmed up diesel is usually coolant that is getting into the combustion chamber, typically from a failed head gasket or cracked head/block.

If you see any oil floating on the surface of the coolant, or if the oil starts to look milky, this motor must be serviced and the issue found or it won't last long.

lp

Posted on Jan 01, 2011

  • MARK MARTIN Jan 12, 2012

    i just solved that problem after two years ,your problem is the sensor on the fuel pump. bad news is its not sold alone so you will have to purchase a pump

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