14 600 isx
07-08-2017, (Subject: 14 600 isx ) 
Post: #1
14 600 isx
filter on frame is half full air bubbles from return line in tank. engine surges or vibrates intermitantly and I hear a small popping noise in air cleaners
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07-08-2017, (Subject: 14 600 isx ) 
Post: #2
RE: 14 600 isx
I assume 14 is the truck year? Sounds like you are getting air in the fuel system.. Cracked pickup? Loose fitting? Loose filter? Cracked fuel line?
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 Thanks given by: Boss
07-09-2017, (Subject: 14 600 isx ) 
Post: #3
RE: 14 600 isx
I'm thinking it could be a bad return fuel block valve, because of the surging.


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 Thanks given by: Boss




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