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Thread: throttle issue

  1. #1
    Join Date
    Jun 2019
    Location
    canada
    Posts
    1

    Default throttle issue

    Hey guys my ol' 6.5 developed an issue the other day that I can not figure out ..... on cold start it revs full throttle ..... I have changed fuel/water seperator/filter, my PMD is remote mounted on bumper , changed PMD ..... and I am now at a loss ....... I did run out of fuel a couple of weeks ago but poured a jerry can of fuel in and primed system and it ran good til the other day ....... any help greatly appreciated

  2. #2
    Join Date
    Nov 2002
    Location
    Martinsville, IN
    Posts
    3,163

    Default

    A stuck fuel solenoid valve will cause this. If that's the problem, you need a new injection pump.

  3. #3
    Join Date
    Mar 2000
    Location
    Loyal WI US
    Posts
    10,792

    Default

    I've seen PMD's do that. Is the PMD new or used?

    Also if the metering in the pump sticks it can do this. The fuel systems on these trucks are not overly particular about fuel in that they don't show signs until its too late. They need additive to survive.
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