4D56 will not start

Does your Mitsubishi L300 make a strange noise? Need wheel alignment specs?
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4D56 will not start

Postby Sizzle.cz » Thu Jun 07, 2018 4:31 pm

I have a 4D56 I was driving it one day and it just died. I almost thought it was out of fuel or I broke a belt because it died without hesitation and quit quickly there was no stumble or “fight” of any kind.

I since replaced the fuel filter and have attempted to bleed the fuel injectors. I pumped the pump atop the filter and bled at the injectors.

I cannot start the thing when i turn it over it makes a gulping sound from the air intake it almost sounds like a horse trotting.

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4D56 will not start

Postby Growlerbearnz » Thu Jun 07, 2018 5:44 pm

It's unlikely to be the fuel filter or air in the lines, that would come on gradually.

Have you confirmed that the timing belt is not broken, the rockers are in one piece, and that the timing marks line up?

Also confirm that there's 12V at the injection pump fuel cutoff solenoid. When you were bleeding the injectors, were you loosening one slightly then cranking the engine? Did fuel come out of the loosened injector?
Nothing says "poor workmanship" more than wrinkles in the duct tape.

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4D56 will not start

Postby Morganizer » Mon Jun 11, 2018 9:54 pm

Yeah, when you shut the engine off, in a gas engine the spark plugs stop making sparks. But in a diesel, it cuts off the fuel, and that makes the engine suddenly stop running. So that fuel shutoff solenoid would be my first suspect.

What did it turn out to be?

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