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Thread: PMD extension cable,,

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  1. #1
    Join Date
    Jan 2013
    Posts
    7

    Question PMD extension cable,,

    Are these extension cables known for going bad? I am having stalling and not starting problems and I think the cable that is bad. The cable is roughly about a year old.

  2. #2
    Join Date
    Feb 2007
    Location
    Baja California Sur Mexico
    Posts
    2,807

    Default

    I have a home made one 8 years old on the suburban and a bought 3 year old one on the 95 GMC . No problems. Only posible failure point would be water getting into the PCM connection. 94 has the good ignition switch, but the 95 failed, weird, caused first gear only and codes for all of the transmission solenoids failing. Check for codes.
    Grant H.
    1995 6.5 turbo GMC K2500 extra cab 4x4 pickup, PMD under bumper, mechanical wastegate, 228,000 miles, rebuilt engine, 4.10 diff, 16 mpg
    1994 6.5 turbo GMC K2500 4x4 suburban "F" VIN #9 resistor, PMD in the bumper, mechanical waste gate, 226,000 miles, Positrac 3.73 diff, 17 mpg highway.
    1982 4x4 shortbed 6.2 Chev 260,000 miles untouched motor 17 MPG 4.27 diff. Best thing I ever owned, 21 years.

  3. #3
    Join Date
    Dec 2008
    Location
    Conesus N.Y.
    Posts
    100

    Default

    my extension cable went last year. If I wiggled it near the connection the truck would start. One of the connectors pulled out of the plug. It took a while to find it. Replaced the cable and all i s well.
    I have a 1997 horton 4X4 ambulance converted into a motor home. New hot glow plugs, remote PMD and cooler and air induction kit. New duramax fan and 180 degree thermostates. I also own two 99 suburbans.

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