Crank no start 09

Kyle308 · May 13, 2016

Hey guys got a buddies 09 6.4 the injection pump locked up on it. I pulled the cab put a reman pump from ford in with a new cover kit. Cleaned out a the rails and lines. Bled the fuel system all morning. Went through 6 gallons of fuel bleeding from the rear banjo and shrader valve. Still no start. Rail pressure is at about 6k when you first hit it then drops to 5100 still no start. Rpms reading sync is okay. Interlock is good. No codes. It kinda pops no smoke no hydra lock. New batteries new starter too. New fuel filters. Anyone have any pointers? I'm thinking about doing a compression test on the cylinders I can easily get to. Thanks!

Kyle308 · May 13, 2016

Low side has good pressure too

webb06 · May 13, 2016

I guess the injectors weren't filled with metal when the pump failed?

Might be worth your time to pull one injector flip it upside down and reconnect the line and watch as someone cranks and see what the spray patter, if any, looks like.

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Dzchey21 · May 13, 2016

Im betting injectors as well. I have had two trucks where the pump failed, truck would build rail pressure but wouldn't start, Basically the injectors are sticking open or shut, is there fuel in the downpipe? With 5K rail it should start no problem.

Kyle308 · May 13, 2016

I pulled an injector they are full of metal. Gonna sell him everything. Flush the system! Thanks guys

Kyle308 · May 13, 2016

How do you guys flush the low side?

webb06 · May 13, 2016

Kyle308 said:
How do you guys flush the low side?

Pull the tank and clean it out. Probably want to replace the low pump too unless you think you can clean it out. Replace the fuel cooler. To do it right....anything that fuel touches needs to be replaced.

Kyle308 · May 13, 2016

Alright thanks man. Might as well do it right

webb06 · May 13, 2016

Kyle308 said:
Alright thanks man. Might as well do it right

You don't want to do it twice....I've been there.

6.0 Tech · May 14, 2016

Drop the tank, drain it, and clean it out as good as possible with papertowels or whatnot as far as your arm will reach in there. Also, flush the lines from the pump to motor, as well as tank to pump, head passages, secondary filter bowl, and any other things that are reused with brake cleaner until it is clean coming out onto a clean shop rag or paper towel. And as stated previously, replace the cooler, injectors, low pressure pump (as its a return system), and probably replace the injection pump again just n case it got any metal in it from the tank, cooler, etc.