LMM: taking dpf off

9W3-HD

Just another Duramax dude
May 29, 2009
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Fort Collins COLORADO
Just curious what the best thing to do with the lines(fuel) when you take the dpf off...just plug them where they run on the underside of the box?
 

Alligator

New member
Nov 9, 2006
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N. Idaho
You can either remove them from the connecting point, or you can wrap them up in a plastic baggy, spray some WD40 in the bag, seal up the hole and tie em up to the frame... Make sure if you remove them, you need to protect the electrical connection with something.
 

dmaxn04

New member
Mar 1, 2009
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Ocean Springs, MS
You can either remove them from the connecting point, or you can wrap them up in a plastic baggy, spray some WD40 in the bag, seal up the hole and tie em up to the frame... Make sure if you remove them, you need to protect the electrical connection with something.

Why WD-40??
 

Alligator

New member
Nov 9, 2006
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N. Idaho
Because it will displace any water that gets in the bag, and won't allow corrosion to the sensors.
 
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Brian1

New member
Jan 1, 2008
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I remove the pressure sensor lines at the sensor and ran a piece of tubing between the two opens to close off. There is no fuel involved at the DPF itself.

Brian