6.6L Duramax-Lift Pump Suggestions
Hello I recently got a 07 Sierra 2500 classic with 140K on the LBZ (pre DEF) engine and have encountered low rail pressure code P0087. After reading about the various sources of this problem I have r...
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You can get it from above but easier through the fender well.
Also the bleeder screws on the filter housing are plastic (at least in the LB7 trucks) and are also known to strip out or leak a little. By 140kmi if it's been maintained properly that bleeder has been opened a bunch of time after filter changes to prime back up. Note you'll have to prime the filter full since no lift pump.
The primers have leaked on these too causing it to suck air but not as prevalent as the bleeder screws.
Also the bleeder screws on the filter housing are plastic (at least in the LB7 trucks) and are also known to strip out or leak a little. By 140kmi if it's been maintained properly that bleeder has been opened a bunch of time after filter changes to prime back up. Note you'll have to prime the filter full since no lift pump.
The primers have leaked on these too causing it to suck air but not as prevalent as the bleeder screws.
