early 99 model is spuratic in running. no real codes. replaced IPR and ICP, now wont start. Fuel bowl was empty. Pump runs but looks like air bubbles, finaly did fill up, still wont start. Can hear pump run bus sounds strange.

 

if its the stock unit i bet its time to replace it. look on ebay and find the walbro gsl 392. you can get it for like 115 bucks and its a stout pump. youll like it.....

 

Just a thought, could also be the screens in teh fuel tank plugged up ossibly?

Tom

 

thanks for the quick reply, we did unhook the inlet of the pump and got 50psi by putting a hose in a bucket. Ran fine for 15 miles or so then starved for fuel.

 

What is the in tank fuel mod? Is it necessary

 

Even with that pump dead it should start with 0 fuel psi. This is how I know.....

One time at band camp, I put a switch on the hot wire to the pump for a security measure. Well, once I forgot about the switch being off, started it, drove it around the block wondering what was wrong with my truck

Second time (sort of). When my stocker finally died, it started and ran but the Carter pump was feeding it so my ScanGauge read about 12psi.

There is a famous video out there on the interweb showing a PSD running at 0 fuel psi.

Just throwing it all out there.

 

If you tank is full and your pump is running and you still have a dry bowl, the something is stopped up or you have a crack in your fuel system prior to the pump, allowing air to be sucked in and not fuel. Once you broke the prime, it can't pick the fuel up again. You can try blowing some low pressure air back into the tank to clear the pick up screen, but I don't think that's your problem. Inspect you fuel line from the pump to the tank.

 

well yanked tank down and did in tank fuel mod, took apart the white valve and it was full of 11 years worth of gunk. Doing a few more mods before starting it up, will update!