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  1. H

    in need of help

    ok so i finally finished my duramax problem i want to thank everyone that took the time to help me. the problem ended up being a bad fuel pressure relief valve on the back of my fuel injection pump truck runs great now wishing i would have came here before reading tech service bulletins and...
  2. H

    in need of help

    i have replaced fuel filters twice using donaldson filters i am using a snap-on modis scanner when i command my fuel pressure up it says it goes up @idle des. and actual are the same when i disconnect my fuel pressure goes to 175psi i have completly disconnected all wiring checking ohms. from...
  3. H

    in need of help

    sorry for not introducing myself my name is Jody Beem and I work for borderland construction in Tucson AZ I did check vacuum @ 5in at idle and remains at 5 as I try to raise the idle
  4. H

    in need of help

    I have a 2005 6.6 I have been working on for a company I work for came in originally with no acceleration so I pulled codes finding p0087 and p1093 I found a tech. service bulletin said when both of these codes come up that most likely I have cracked injectors so.... I replaced all 8 with...