Duramax Losing Prime!!!
Super Moderator
Joined: Oct 2007
Posts: 14,872
Likes: 764
From: Houston, Tx
what really aggrivated me is that even giving gm and the local parts stores both, the vin number both gm and the locals said oh there is a fuel pump module in the tank, and inspecting the wires to the unit there are two wires to it and im sure they are for a sending unit and no pump , even gm said they could send me a pump unit that went into the tank , how silly this is sorry but im a virgin with a duramax
two wires is for a rheostat, your fuel lever sensor.
Super Moderator
Joined: Oct 2007
Posts: 14,872
Likes: 764
From: Houston, Tx
there is a few places that can cause a leak, on the bottom of the fuel filter there is like a 16 point plastic nut, that could be loose or not right enough. be careful though, it has plastic threads.
or the water drain valve, or the bleed screw not working right. hell even the fuel filter could not be on tight enough. loose lines, or schrader valve could cause leaks.
you can prime the system really good, and then get some soapy water and spray it all over the place and see if you can find leaks
or the water drain valve, or the bleed screw not working right. hell even the fuel filter could not be on tight enough. loose lines, or schrader valve could cause leaks.
you can prime the system really good, and then get some soapy water and spray it all over the place and see if you can find leaks
Diesel Fan
Joined: Mar 2011
Posts: 18
Likes: 0
yes i figured as much on that but it was silly that even gm with the vin claimed it as a pump
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i will try that in the am and return , thanks so much , ill have me or one of my crew recheck the fire dept work on this thing thansk
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i will try that in the am and return , thanks so much , ill have me or one of my crew recheck the fire dept work on this thing tha
nsk
Last edited by bodyman36; Mar 25, 2011 at 12:17 AM. Reason: Automerged Doublepost
