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After fueling, and ONLY after fueling, truck starts hard.


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I'm the happy owner of a 2015 2500HD 6.0 Flex Fuel Double Cab.

When I fill the tank, I get in and turn the key, pause, then bump the key to start.

It will turn the starter longer than needed (3 or 4 seconds) then let go.

The motor usually fires, but once in a while she'll stall.

Mind you, this only happens at the pump. I have not had this issue any other time.

Thanks in advance for your thoughts and opinions!

 

photo_2022-08-02_20-29-57.jpg

Edited by Red Blocker
typo
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Purge valve sounds like its sticking either closed or open (don't recall which would do the hard start).

 

Purge dumps EVAP gasses into the engine for re-burning so if its sending those there when its not supposed to, you can get a hard start.  

 

 

Edited by newdude
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