HMMWV Won't Start

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HMMWV Won't Start

Postby jhutch15 » 16 Oct 2017, 11:14

I recently checked into I&I duty and I have a HMMWV here that apparently hasn't ran in almost 4 years. Apparently the truck overheated and blew the radiator from what I was told. I was told the radiator and engine were replaced. They also ordered a new fuel tank, fuel sending unit, PCB box and an engine wiring harness, all of which I installed myself. Truck still wont start. The glow plugs are good and I'm getting fuel to the injectors so I know the pump is good as well. I have used the VADS but none of the troubleshooting steps could tell me what was wrong. I could greatly use some assistance. :D
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Re: HMMWV Won't Start

Postby SUPERMOD » 17 Oct 2017, 09:51

is it turning over?
Also, amount of fuel to injectors is important. If it isn't getting enough then that could be why. Did you check the mechanical fuel pump?
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Re: HMMWV Won't Start

Postby jhutch15 » 15 Nov 2017, 11:37

Yes it turns over but just won't start. The mechanical fuel pump is working and I am getting fuel at the injectors
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Re: HMMWV Won't Start

Postby SUPERMOD » 16 Nov 2017, 06:05

amount of fuel is super important though. that fuel injection pump could be allowing fuel, but not the right amount and that could be causing the problem. my guess at this point would be the injection pump if it is turning over strongly.
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