Duramax stalled and no start

[GMC guy]

Make

Gmc

Model

C5500

Year

2005

Miles

300,000

Engine

6.6 LLY Duramax

Hey got a 6.6 gmc lily Duramax. 300000 Alison auto. Had a quarter tank but decided to stop at gas station and pop another $20 in. Put my fuel in, and then, an unusual start. Took longer to start. But it did after a couple tries. I drove about 20 ft and it stalled. It just cranked but no start. No rpm on the gauge. I opened the bleed screw on the filter and pumped it about 40 times and got bubbles and diesel. Closed the bleed screw and then tried it. No go. No difference. Codes are PO670, PI404, PO401, PO404, PO405. Although egr was deleted. Must be old codes the egr ones. Checked under hood fuses. All good. Gotta check relays but gotta get it home first. Any help would be appreciated.

 

[grcauto]

No RPM? If that's the case you should be looking at the crank sensor.

 

[dabunk]

Are you sure they did not put gas into it? Sure sounds like they did to me even a 50 50 mix will smell like diesel. Put some on a rag and try to light it. Diesel will not but a mix will

 

[GMC guy]

Ok. Yes. With how fast these batteries spin the engine, there should be some rpms. Ill go back and check that pump to see what was put in tank. Ill also check out the rag thing. Thanks guys. Ill post back when I get to it.

 

[GMC guy]

Question. Shouldn’t the fuel line into the filter be pressurized? I loosened the banjo bolt and nothing. No pressure

 

[dabunk]

Should be but only while cranking

 

[GMC guy]

Yeah, cranked it with the bolt loose. No pressure. Then tightened and pumped up the fuel filter bulb. Then loosened bleed screw again. Got bubbles. But still no start

 

[grcauto]

Sounds like a bad pump.

 

[GMC guy]

I sprayed starting fluid into it and it started then died. Twice. Does this truck have a lift pump in tank or just the cp3?

 

[dabunk]

Should have pump in tank. Go to rockauto and see if they list one for truck

 

[GMC guy]

Fixed! I pumped the button on the filter about 20 times, opened the bleed screw slowly and got bubbles then diesel. Pumped 20 more times. Turned the starter over and it started.

 

[grcauto]

Fixed! I pumped the button on the filter about 20 times, opened the bleed screw slowly and got bubbles then diesel. Pumped 20 more times. Turned the starter over and it started.

They don't like air in the system. Glad to see you are good.

 

[dabunk]

Have to watch closely on these newer diesels especially the Ford. Cranking with no fuel burns up the injector tips!!