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chevy 6.5 question

Discussion in 'Chevy Trucks' started by jimslawnsnow, Sep 7, 2014.

  1. jimslawnsnow

    jimslawnsnow PlowSite Fanatic
    from mn
    Messages: 11,035

    Have a 97 Chevy/Detroit diesel. Since spring it would occasionally die. It got progressively worse. Had some work other than the engine done at a shop. When to pick it up. It ran for ten mitutes or so at the shop then died when idling and would not start again until it was completely cold. Same thing happened to him again. He's not a diesel mechanic by any means. Any suggestions before I have it towed to another mechanic who knows diesels? Thanks
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,968

    Well either the.injection pump or the driver module
     
  3. 2006Sierra1500

    2006Sierra1500 PlowSite.com Addict
    Messages: 1,758

    Has the PMD been relocated?
     
  4. jimslawnsnow

    jimslawnsnow PlowSite Fanatic
    from mn
    Messages: 11,035

    not sure what that is
     
  5. maxwellp

    maxwellp PlowSite.com Addict
    Messages: 1,112

    One of the most common failures with the DS4 pump on the 1994-2000 Chev 6.5L engines is the Pump Mounted Driver (PMD) located on the side of the pump which has been contributed to excessive heat build up of the PMD. The PMD Relocation Kit moves the PMD away from the area of potential heat build up and is mounted on an extruded aluminum base to give better heat sinking.
     
  6. Fjtort2

    Fjtort2 Member
    Messages: 64

    My 6.5 did that exact same thing a few years back.. PMD solved the issue!
     
  7. jimslawnsnow

    jimslawnsnow PlowSite Fanatic
    from mn
    Messages: 11,035

    I remember reading something of it a while ago. I wasn't having problems then though