well the weather is getting cold again and i am fighting to keep the truck warm. anyone know if the truck will pop a check engine light if i refuel with the engine running?

 

Not on the 5.9 trucks. It will on the 6.7 truck due to evap system.

 

yea, thats what i thought, but it could have sworn i read in the manual that it could trip it.

thanks!

 

No evap system on the fuel tank on a 5.9 that is why we have to put hoses and filters on the rollover valves because they can suck in dirt and water.

 

I accidently left my cap off for aboout 2 miles the other day and mine stalled and the check engine light came on. It went off after a day and a half but then it stalled and the light came on again a few days later. I had the dealer look at it today...They reset/reflashed for me but couldn't find anything else. I don't think it was a coincidence but I guess we'll see if it happens again.

 

I don't know if I've ever shut it off to fill it up.

 

I have yet to do a tank vent mod so I shut down as it takes at least 10 minutes to get liquid up the spout! It's that last 4-5 gallons that take all the time, but that's worth 80-100 miles easy!

 

I have never turned mine off to fill up you will be fine.

 

I never turn mine off either.

 

Me neither.