Help: 2001 duramax

[ranchand]

2001 duramax, it will start right up in the morning, run for 2 or 3 seconds and die, pump the primer about 10 times, fires right up and will run all day with no problems at all, next morning same thing, i have changed the fuel filter HELP

 

[MACKIN]

Losing prime most likely. Recheck fuel filter making sure gasket is sealing and filter is tight.

 

[Josh2002cc]

Crack in the filter head causing it to lose prime? Cracked filter heads are common.

 

[carter_44]

I had this issue as well. Merchant Auto fuel filter assembly rebuild kit solved my problem.

 

[DeMax LB7]

Def. the filterhead as stated above. had this problem earlier.

 

[ranchand]

It seems that if it is warm outside it will start up and run just fine in the morning, but if it's cold outside is when i have the trouble HELP

 

[MACKIN]

Have you checked anything in other words did what has been suggested?

1) Take off the OEM filter
2) Clean and inspect O'rings (both)
3) Inspect housing and water sensor for cracks.
4) Put lil Vaseline on the O'rings and reassembly make sure everything is tight.

See what happens. It has to be a loose of prime issue or it would seem as you said priming it solves the problem.