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Barry Polley · 09-07-2022, 02:30 PM

Filters filters.. hopefully not the lift pump. If by chance you put fuel in mixed with biofuel there is a very good chance you knocked some debris loose for your filters. Bio is an extreme detergent and older vehicles hate it. If you have a algae issue ( starts at the refinery tanks) you will need to dump tanks and clean them. Very hard to get rid of. I haven’t seen an additive for it. Hopefully you just took on a bad batch of fuel. We changed 2 filters from Salt Lake to Bay Area with bad fuel once. We had to leave the diagnostic tool plugged in and clear under way.
Hope you get it worked out.
Find a good hot rod cummins guy close to you. Boys are sharp!!

09-07-2022, 02:30 PM	#6
Barry Polley Senior Member Join Date: Dec 2003 Location: Vacaville Ca Posts: 743 Likes: 652 Liked 554 Times in 229 Posts	Re: Cummins 5.9 12 valve mechanical expert Filters filters.. hopefully not the lift pump. If by chance you put fuel in mixed with biofuel there is a very good chance you knocked some debris loose for your filters. Bio is an extreme detergent and older vehicles hate it. If you have a algae issue ( starts at the refinery tanks) you will need to dump tanks and clean them. Very hard to get rid of. I haven’t seen an additive for it. Hopefully you just took on a bad batch of fuel. We changed 2 filters from Salt Lake to Bay Area with bad fuel once. We had to leave the diagnostic tool plugged in and clear under way. Hope you get it worked out. Find a good hot rod cummins guy close to you. Boys are sharp!! __________________ Barry Polley 758 A/SA California- No place to race!