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jump school bus
New Member

4 Posts

Posted - 12/14/2017 :  2:02:46 PM  Show Profile  Visit jump school bus's Homepage  Reply with Quote
2001 Bluebird bus Cummings Diesel service light came on got a cold outfit for crank sensor changed out the crank sensor ran good for a little bit then the light came back on losing power change crank sensor again same thing on and off losing power but gives me no code

RonF
Top Member

867 Posts

Posted - 12/15/2017 :  03:13:40 AM  Show Profile  Reply with Quote
Have you checked your fuel system? ALso it may sound weird but check your transmission codes.

US Army retired CMBT
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valleybusman
Top Member

USA
798 Posts

Posted - 12/15/2017 :  09:35:02 AM  Show Profile  Send valleybusman an AOL message  Reply with Quote
I had the same problem you have . I changed the lift pump and problem seemed to away . When that light comes on it cuts fuel down a little bit .
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underthebus
Active Member

11 Posts

Posted - 12/20/2017 :  11:02:04 AM  Show Profile  Visit underthebus's Homepage  Reply with Quote
Could be an ECM problem. I had a similar issue and swapped ECM from retired bus. Problem was gone
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jump school bus
New Member

4 Posts

Posted - 01/20/2018 :  2:19:02 PM  Show Profile  Visit jump school bus's Homepage  Reply with Quote
replace fuel filters and lift pump has 12 psi
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