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Truck shuts off but starts back up

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Here is a good one I have been fighting,

truck shuts off like you turned the key off while driving but wait a few seconds and it starts right back up, but if you try to just start it back upwithout waiting it will just crank. No codes, doesn't crank like it ran out of fuel just starts back up. Could it be a ground? New vp44, App, alternator. Yesterday day on a 300 mile trip it did it more often like something had to cool down. I'm thinking maybe computer? 

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  • KATOOM
    KATOOM

    I was going to ask the same question.....or assume the truck is haunted.   If I understand the situation, it sounds like the truck simply doesn't like to re-start not long after shutting off

  • JAG1
    JAG1

    I think he said it shuts down on its own without warning, then like something has to cool off, wait a few seconds or minutes to fire it back up with the key again.

  • dripley
    dripley

    ASD relay on its way out maybe? It would be easy to swap out and see. just guessing.

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Yea Hawkez, both times that it shut down everthing shuts down, just as if i would have turned the ignition switch off. But then starts up like normal. Is there a common issue with these trucks that the ignition switch goes bad?

On 8/20/2016 at 6:58 PM, dripley said:

ASD relay on its way out maybe? It would be easy to swap out and see. just guessing.

What is asd relay?

Auto shut down relay. I always thought is was there to shut the truck in an emergency, like  a wreck. I did not think the truck would run without it energized. But it seems the more I tried to find out about it last night the less I knew. Not really sure what it does now.:think:

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