CATEGORY LISTINGS > GM DIESEL
Replying to Thread:

Bad Lift Pump


Created On Friday 5, August, 2005 7:35 AM by HARLAND96

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HARLAND96
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Note Friday August 05, 2005 07:35 View thread in raw text format
Diesel Talk
My 1996 6.5 started stalling and would cut out. It would go for a week and run fine. I took it to the Chevrolet dealership and they said the lift pump was bad. They quoted me 375.00 to fix it. I ordered the same part # they told me needs replaced and put the lift pump on myself. Ran fine for a few days and now it's stalled out once and hick-ups from time to time. I bought this truck new and the injector pump has been replaced twice. What else could it be?

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 Harland Clark
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Gaoji
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Note Saturday August 06, 2005 09:55 View thread in raw text format
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It sounds like you are getting air in the fuel line(s).

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HARLAND96
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Note Monday August 08, 2005 08:36 View thread in raw text format
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Can you bleed it through the Fuel/Water filter?

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 Harland Clark
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Gaoji
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Note Wednesday August 10, 2005 19:31 View thread in raw text format
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The best way is if you can start the engine and then crack the injection lines that go to each cylinder one at a time and wait to tighten it until the bubbles are gone.

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 Built like a Mack Truck!
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alexisrois
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Joined: Feb 2012

Note Tuesday September 25, 2012 23:41 View thread in raw text format
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The incline must've been steep enough and long enough to run it outta fuel and the pump was just air locked. I took the end hose off of the pump towards the filter and cycled the pump a couple times and it worked. thanks.

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dsldr
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Joined: Jan 2010

Note Friday December 28, 2012 19:53 View thread in raw text format
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There is an electronic timing element inside the injection pump that controls injection pump operation. It is a common item that fails often and somewhat regularly. I can't remember the actual technical name for that part, but any reputable pump service station (other than GM) knows those pumps well, and that they are JUNK. It is a cause for intermittent stalling and performance issues that cannot be explained by any other mechanical failure.

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 gregory l ralyea
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