runs then dies after 10 seconds

[powerstrokesmoke96]

jusy did updated standpipes, dummy plugs, and stc fitting and egr delete in 05 6.0 i can get truck to run for about 10 seconds then dies really slow. bogs down then eventually dies. let it sit for 30 second then fires right back up and dies again. any idears on what it could be?? thanks


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[Term3]

Subscribed. My Ex does basically the same thing. It starts fine drives about half a block gives a very slight miss, goes a few more feet with another very slight miss then dies. Will not restart but if I come back to it in a few hours and boost it it'll fire right up. Dealer "checked" it out but found nothing. No codes but I'm wondering how low a voltage from the batteries would have cleared the codes as after trying to get it started and having the 4-ways on for hours everything was pretty dim when I got back to it.


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[southend]

I would check fuel pressure, and check for combustion gases in the secondary fuel housing. Remove the secondary fuel filter, hfcm fuse, and ficm relay, crank the engine over and look for bubbles/gas in the fuel housing.

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[powerstrokesmoke96]

thats what i was thinkin somthin with fuel pressure


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[powerstrokesmoke96]

if there is bubbles in the housing what does that mean?


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[southend]

Originally Posted by powerstrokesmoke96

if there is bubbles in the housing what does that mean?


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It means that the injector is loose or the copper seal is damaged and combustion gases are leaking through to the fuel rail.

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[powerstrokesmoke96]

oh ok. well i feel like an idiot. there was no fuel filter in it. runs great now


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[southend]

Originally Posted by powerstrokesmoke96

oh ok. well i feel like an idiot. there was no fuel filter in it. runs great now


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Holy cow, upper or lower? Man I hope that doesnt come back to haunt you. Thanks for the update.

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[powerstrokesmoke96]

upper


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