bleed air out of system? - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 02-23-2013, 08:51 PM   eBay Motors  #1 (permalink)
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bleed air out of system?

I have a 03 dmax
Changed the injectors, and fuel lines on it and got it all back together and got it fired up today and it ran for like.10seconds and shut off.
Before starting it i primed the filter and pumped thevplunger on the fuel filter prior to starting up. An now i cant seem to getvit.to start again. Im guessing it has air in it.

Any input/help/tips/ideas? Much appreciated

Randy Swanson
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Old 02-23-2013, 09:17 PM   eBay Motors  #2 (permalink)
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Did you open the bleed screw?


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Old 02-24-2013, 04:30 AM   eBay Motors  #3 (permalink)
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Did you open the bleed screw?


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Yes. After the ;plunger got hard i opened the bleeder next to tge plunger.
Is that the bleeder your talking about?

Just a dumb question. Do i need to have the key on while trying to do this?
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Old 02-24-2013, 05:20 AM   eBay Motors  #4 (permalink)
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Open the bleed tab on the filter and prime the fuel filter until fuel comes out steadily. Once it flows good close it. Prime filter until it gets hard to push and start the truck. it may shut off one more time. If it does only prime it again till its hard and start her up
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Old 02-24-2013, 06:14 AM   eBay Motors  #5 (permalink)
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Open the bleed tab on the filter and prime the fuel filter until fuel comes out steadily. Once it flows good close it. Prime filter until it gets hard to push and start the truck. it may shut off one more time. If it does only prime it again till its hard and start her up
You mean the tab on the bottom of the fuel filter?
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Old 02-24-2013, 07:41 AM   eBay Motors  #6 (permalink)
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Quote:
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You mean the tab on the bottom of the fuel filter?
its the small black plastic tab on top of the filter body, use a larger blade screw driver to crack it open, no need to fully remove it, just crack it open and pump away, once fuel starts running out, screw it tight again, hope this helps.
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Old 02-24-2013, 08:15 AM   eBay Motors  #7 (permalink)
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All air is bled out of system i do beleive..

It stays running now. But has real loud knock, and rough idle.
What the craps the problem now? Im frustrated beyond my limits... lol
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Old 02-24-2013, 11:08 AM   eBay Motors  #8 (permalink)
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Well. Its fixed. My dumb butt didnt plug in the fuel rail sensor.
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