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    84 GMC C2500 Dies After It Warms Up

    It is 70 degrees out today so i'm sure that plays a part in it.
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    84 GMC C2500 Dies After It Warms Up

    Lame so youre not sure on how to test for it? I didn't see any collapsing hoses just now. Barely warms up before it will start sputtering.
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    84 GMC C2500 Dies After It Warms Up

    Thanks for the info. Sorry for all the questions but I don’t want to buy anything until I know for sure that’s the problem. How can I diagnose that’s the problem? Does vapor locking tend to get worse over time? The issue got worse very quickly to the amount it gets driven.
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    84 GMC C2500 Dies After It Warms Up

    Aw ok. I have a mechanical pump. Where was your fuel filter placement originally?
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    84 GMC C2500 Dies After It Warms Up

    Where at on yours was it causing the vapor lock? How'd you fix it?
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    84 GMC C2500 Dies After It Warms Up

    Hello- Long story short I needed to replace the fuel tank. While doing it I replaced the fuel pump, sending unit, bypassed the fuel selector valve and replaced the fuel filter. Ever since then when the truck warms up it bogs down like its not getting fuel and will eventually die. Let it...

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