Losing Prime [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Losing Prime


STSCS
09-22-2006, 07:31 PM
I keep every morning having to prime the fuel system. I'm not sure where its losing prime. Any suggestions for where to look. Is their a check valve? Could an injector be leaking by?
Ed

fal0302
09-22-2006, 08:38 PM
Have you change to fuel filter lately? Had the same problem until I removed it to check the O ring, reinstatled it and the problem when away. Make sure you get all the air out with the bleed valve and screw it back in while you have the primer down. Some post on this site also had the filter housing replaced. Hope this helps.

~Duramax~
09-22-2006, 08:51 PM
could be leaking bleeder screw. That is very common.

WYOMAX
09-22-2006, 09:58 PM
could be leaking bleeder screw. That is very common.
:exactly: Just had mine doing the same thing. Couldnt even see the crack just enough to bleed off. I have also had the fuel filter not seal.

Deere3500
09-24-2006, 04:02 AM
Had mine do the same thing. Make sure that bleed screw is snug enough for the o-ring to seat. They shouldn't have put a screwdriver slot on that bleed screw. But just my .02!
:grd:

STSCS
09-24-2006, 07:28 PM
I put baby powder all over the top of the fuel prime pump area and no sign of leakage. I will change the filter tomorrow.
Thanks
Ed