The Mitsubishi Pajero Owners Club®

Japan4wd · Posted: Tue Nov 06, 2018 15:42 Post subject: No Fuel after Injector Pump

Hi, I have a '90 2.5 Diesel SWB. Just prior to Hurricane Irma, there was no petrol available at any gas station but lucky for me there was still some diesel. I bought as much as I could. After the hurricane the Pajero was invaluable since I could drive over the downed trees and debris and thru water (not deep water). It was running great but then I eventually ran low on Diesel and stopped driving it since the gas stations did not have any fuel. It did not run out of fuel.

I left it sitting for several months and when I went to start it, it would not rev up above 1k on the tach and the idle was very rough. If I pressed the accelerator it would bog down or stall. I put more fuel in it thinking it was just too low but that did not help. Now it will not start at all and I am not getting any fuel past the injector pump.

I have checked the fuel filter and bypassed it, when I prime with electric pump the fuel will go to the fuel return but not toward the injectors. I have also tried priming it with the filter pump. I have checked the stop solenoid and it clicks when 12v is supplied to it. I get fuel from the tank to the engine without any trouble. I think the micro filters must be clear since fuel will go to the fuel return. I have tried to pressure it up by cranking it over for about 30 seconds at a time, same results as with the electric pump. I have tried bleeding the system at the injectors but still no fuel at the injector or at the injector pump going into the fuel lines for each cylinder.
To me something seems to be blocking the fuel in the injector pump but I am at a loss as to what to check next.
I hope I mentioned everything and any input would be appreciated.
Dan

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Simon_W · ******* Joined: 21 May 2013 Posts: 4881 Location: Watford

Sounds to me like it's probably debris in the tank that's worked its way into the injector pump. Consider removing the pump and taking it to a specialist for refurbishment. Also drain the tank to inspect it and the filler pipe for rust. Do a very thorough clean-out before refitting the pump.

Japan4wd · Posted: Tue Nov 06, 2018 21:55 Post subject:

Simon_W · ******* Joined: 21 May 2013 Posts: 4881 Location: Watford

trekker · Posted: Wed Nov 07, 2018 8:58 Post subject:

You need to look deeper into the fuel cut off unit. The click you hear is only the solenoid working, but the needle may not be lifting from it's seat. It's an easy access and parts are self evident.

Japan4wd · Posted: Wed Nov 07, 2018 13:27 Post subject:

I appreciate the info, I fill pull the solenoid 1st and see if it does anything.
thx to both of you