05 duramax help no start wint stay primed
hi guys new here . I have a 2005 c4500 just bought few weeks ago . truck ran fine until about 150 miles then went into limp mode code 1093 . would shut it off wait awhile and would start up then get a few miles then limp mode again . would stay running . so i changed filter . Got 130 miles limp mode. so i changed the filter head and FPRV and fuel pressure valve with a race valve . now when i prime it it starts then losses its prim . even if i don't start it i can prime the pump up hard as a rock then what 30 seconds then its soft again. It held its prime before i changed every thing. i dont see any fuel anywhere. i ran a few tests pressure the fuel tank and seen no leaks . I took off hose off the side from the fuel filter housing going to the cp3 and put 5 pounds of air to it and i could hear the fuel in the tank gurgle. Im sure this isn't right .any ideas? thank
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Well i guess no one cares to answer . Well for all its worth i found the problem . wasn't a leak in the line or anything to do with the filter head .
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I just saw this but the only problems I've ever had were filter heads, filter O Ring, or a cracked Injector line.
I swapped to the nicktane kit, fass pump w/o filter, and wix pre filter. After that I never had issues |
Thanks Tanman , It turns out the cp3 was returning all the fuel to the tank through the return lines from the pump. bad check valve .
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losing prime
Just bought my first diesel..an 05 3500 lly duramax with 90K miles,runs perfect ,tows perfect...BUT seem to need to prime fuel filter at times when it idles a few seconds then stalls,also iv orders a rebuild kit for seals in filter housing and have noticed the filter present is a wix 33528 which does not have a place to attach a water sensor....advise??
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