anybody figured out the solution to the walbro checkvalve missing like in the oe pump...on cold start it takes a couple of primes and i have to usually give it gas a couple of times on start up to bleed out air in the lines anyone figured this out yet? how to hold prime in the lines? or?

 

What pump do you have? PN?

 

Its the one from texas speed basically supposed to be a kit but the only thing i used was the plug and I had to make it work ...so its really not a direct fit for the trucks ...
http://www.texas-speed.com/shop/item...d=225&catid=10

TSP In-Tank Fuel Pump Upgrade Kit,
Item#:
27-GM722-2
Price/ea.
$139.99

 

I am trying to figure out what Walbro 255 pump you have, they make a couple.

 

I have the same problem. First thing in the morning it cranks immediately but drive 2 minutes and you have to let it prime. I have learned to live with it, however I think the only fix is a new pump. I hope someone has an easy solution.

 

my walbro 255 works fine, its the one that came with the magnacharger kit

 

I have the Bosch 044 intank and it has no check valve.. Gotta time the crank just right.. Turn the key on and pause for about 1 second then roll the key the rest of the way and it fires up..

Something you can try is to wire in a manual switch to the fuel pump relay.. When you go to crank it, just press that button for a second and while holding it, fire it up.

 

Keep in mind those of you guys that reuse the stock intank fuel line.It is prone having problems with it leaking down.My line had a small hole that the pump would **** out of,and cause priming problems.

 

i used PushLok hose..
The aeroquip stuff i had in there for 6 years looked just like new when i pulled it out a few months ago for the Bosch pump install.

 

I've been having an issue for a couple years now and I suspect it's the same issue you guys describe. Cold start the engine stumbles or dies on first cranks. Once "primed it lights right up. Only cold starts have issue, and by cold I mean 6 hours or more.