ISX15 871
04-24-2019, (Subject: ISX15 871 ) 
Post: #1
ISX15 871
I have a 2010 T800 and check engine light and it the truck shut off at the light. Got fuel Pressure fault. Can someone help?
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04-24-2019, (Subject: ISX15 871 ) 
Post: #2
RE: ISX15 871
Is it a single cam or double cam engine
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04-24-2019, (Subject: ISX15 871 ) 
Post: #3
RE: ISX15 871
It's a 2009 isx15 with 2 cams. Also the the fuel tank on the left side marks empty with red light. I only use driver side tank and fill it. Now all the diesel is on driver side . When before it would even out. It turn off at light and rolled it to the side and got a fuel pressure fault. Was able to started back up. I drove it home no more problems and no faults when at home. I want to make sure to fix before I run into more problems.
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04-24-2019, (Subject: ISX15 871 ) 
Post: #4
RE: ISX15 871
Check vents on tanks. They get dirt in the ends of the hose and plug up and not cross over right.
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 Thanks given by: Chamberpains , Signature620
04-24-2019, (Subject: ISX15 871 ) 
Post: #5
RE: ISX15 871
Ok thank you I'm going check that tomorrow. I was wounding would their be a sensor that could cause this fault?
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04-24-2019, (Subject: ISX15 871 ) 
Post: #6
RE: ISX15 871
if pass side tank went empty and engine sucked air from that tank then yes theres the reason for the fault.
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 Thanks given by: Rawze
04-25-2019, (Subject: ISX15 871 ) 
Post: #7
RE: ISX15 871
Thank you , the vent was clogged . I hope that was the problem . How much or how dirty should the crank case be getting? I check mine today a little oil dripped out and filter seems a little wet and heavy.
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04-25-2019, (Subject: ISX15 871 ) 
Post: #8
RE: ISX15 871
crank vent will be wet with oil and somewhat dirty looking. cummins sells a maintenance free filter which is basically just a check valve that tries to stop oil from escaping and lets out any steam.
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