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fuel pressure #1423647
04/22/13 10:31 AM
04/22/13 10:31 AM
Joined: Oct 2005
Posts: 797
arizona, usa
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lokalik Offline OP
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lokalik  Offline OP
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Joined: Oct 2005
Posts: 797
arizona, usa
01 cummins 5spd. what should be the fuel pressure leaving the fuel filter cannister, or the pressure before the injector pump?

Re: fuel pressure [Re: lokalik] #1423648
04/22/13 07:23 PM
04/22/13 07:23 PM
Joined: Jan 2003
Posts: 18,389
UPPER MICHIGAN, MARQUETTE COUN...
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NITROUSN Offline
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Joined: Jan 2003
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UPPER MICHIGAN, MARQUETTE COUN...
It will depend on a lot of things. No less than 3 psi under load. A healthy pump should be 12 to 15 psi at idle and 10 to 12 under load. There was a tsb on pump performance. I believe it was like 40 ounces for one pump key/starter bump cycle. Volume is more important than psi.







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