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2002 379 c15

Discussion in 'Peterbilt Forum' started by cottonseed389, Jun 16, 2012.

  1. Jun 16, 2012 #1
    cottonseed389

    cottonseed389 Bobtail Member

    1
    0
    Jun 16, 2012
    0
    I have a intermiten power problem. I have hade it in the shop and checked and they say everthing is in specs. boost pressure is good, new fuel pump fuel pressure is at 65-70 at 1500 Rpm. pulls good at times and times it loses power. can someone help.
     
    cottonseed389, Jun 16, 2012
    cottonseed389, Jun 16, 2012
    #1
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  3. Jun 18, 2012 #2
    cowcatcher

    cowcatcher Light Load Member

    58
    12
    Dec 11, 2011
    Ridin' round with the top down !
    0
    Fuel psi should be 75 @ idle and 90 @ WOT. You should have higher fuel psi than that at 1500 rpms. Have you cked for sucking air in the fuel system ?
     
    cowcatcher, Jun 18, 2012
    cowcatcher, Jun 18, 2012
    #2
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