03 Duramax can't prime fuel - Page 2

jdmak · 11-19-2009, 05:20 PM

Still can't get it to start looks like I am going to have to bake in the the garage over night, not looking forward to pushing.

I have the fuel primed now. I followed the 911 directions and it still wouldn't prime. So I took the cap off the priming pump. I was hoping to find an easy way to put 911 down the input hose. I was afraid to take the rubber hose off because everything was so cold. What I found inside was two o-rings that had shrank and lost their elasticity. I brought the assembly inside for a while, to warm up. When I put it back together I put a little ATF on the rings to make them slide a little better and maybe help seal while sliding. After a few pumps it starting spitting fuel out the bleeder screw.

Unfortunately, it still doesn't sound like I am getting fuel. Hopefully a night inside will bring it to life.

Side note, that little plastic bleeder screw is brittle at -6. Had to make trip to the dealer mid-day for a $15 plastic screw. They really should have made that thing out of brass (especially for $15).

rossihaul · 11-19-2009, 06:52 PM

truck plugged in? maybe fuel gelled up in fuel rail, cp3 pump or even injectors? get a little heat in motor things should start to un gell.. good luck my 02 started to gell up on me last year while driving down the highway. it sucked. they do make 12volt heater pads for fuel filters. going to be buying a few of those and insulate my fuel lines this weekend. get this pig ready for winter. lol I dont want to get gelled up again this year. good luck.