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Another update....That was 1 leak the other 1 i found yesterday. I had disconnected my cold start intake thingy. The fitting that I used was leaking. I finally found the leak by bleeding the air out of the system and plugging the the return line and putting 110 lbs of air on the system......I...

Found it..... Thanks to Airmech3839 and Floridianson... Without the intank pump the fuel is under suction from the tank thru the primary filter....then the IP takes over and pressurizes it to the secondary and final filters on to the Hydraulic Head. I found a leak at the primary top nut and in...

OK There is "Pressure" in the system.... If I had a filter or line leak it would cause air to be sucked into the system which would cause a "Vacuum" in the system. If I do not use my pump I still get "Pressure" in the system.

The only time it gets air in the system is when it is running. My intank pump does not work, I use a thumper which is located at the tank. I can leave the thumper running for hours and it will not put air in the system, but run the truck for 10 seconds and I have air in the system.

No, the truck does not run OK. When I bleed the air out of the system, it will start and run for a couple of minutes. Then the air is reintroduced to the system and stalls out. When I open the bleed valve there is a lot of pressure on the system, even with the pump off. I just use a little...

I am getting air in my fuel. It is either coming from my IP or getting back feed from the injectors(if that is possible). I have checked the bypass from the injectors and it is not coming from there. I get a lot of air when I disconnect the overflow valve assembly, and it is coming from the...