05 fuel pump pressure

[DRead]

Does any body know the stock pressure from the pusher pump in the tank? I am thinking of running a racor in between the stock filter and the high pressure pump. The turbine style filter says a max of 15 lbs ,I think these are better at removing water and can get down to two micron filtering.

 

[john3976]

I think it is 10 PSI, My Fuel Pump gauge reads 9 PSI at idle.

 

[DRead]

The racor websight says it only produces 1/4 lb back pressure when clean from the 60 gallon per hour filter,and you can install a pressure gauge right on top

 

[rbattelle]

Does any body know the stock pressure from the pusher pump in the tank? I am thinking of running a racor in between the stock filter and the high pressure pump. The turbine style filter says a max of 15 lbs ,I think these are better at removing water and can get down to two micron filtering.

An excellent undertaking, in my opinion. If the Racor makes 1/4 psi backpressure with a new filter, how does it do with a filter full of 2-micron particles?



The real key for the CP-3 is to maintain flow rate, not pressure. As of 2003, minimum flow to the CP-3 was 38 GPH. So the question is, can the stock in-tank pump continue to flow at least 40 GPH to the CP-3 with a used Racor 2-micron filter AND the stock 10-micron filter. I have no idea. Only way to tell would be to do an experiment.



If it were me, I'd replace the hard metal line between the stock filter and the CP-3 with some -6 (or -8) AN hose. Then run the hose temporarily over to a 1-gallon container (not to the CP-3). Splice 12v into the stock pump and time how long it takes to fill that 1-gallon container.



Then, temporarily plumb in the Racor filter you want to use into the line and turn on the pump again. Time the flow rate.



That's the only way to know for sure that you'll be safe. If you cross that 40 GPH line, your CP-3 might be in jeopardy.



-Ryan

 

[DRead]

does anybody or rbattelle know witch is the pressure line and which is the return line in between the filter housing and the cp3 ? There also seems to be a return line coming from the injector common rail tube ?anybody have a schematic or diagram? Thanks for your comments I see you were thinking of running a booster pump . A centrifical pump would work I think I dont know if there are any out there.

 

[AlexWV]

Well I'm glad this came up because I have an 05 and would like to know if an auxilliary pump will work with the pusher pump. The thing I don't quite understand is if the pump in the tank is not pushing enough gph or pressure up the line, how can an aux pump up the line "suck" more up?

 

[rbattelle]

witch is the pressure line and which is the return line in between the filter housing and the cp3 ?

Trace the tubes back to the filter canister. The one that connects to the BOTTOM of the filter canister (you can see it from the wheel well) is the SUPPLY line. The other is the return.



-Ryan

 

[silkey]

my pressure is getting lower. with any kind of luck,i will have the first 2005 failure. i can pull the pressure to zero with only half throttle.

 

[silkey]

i just decided to rant a little. if you are going to put the pump in a more remote area(the tank),it seems to me you would at least put a pump in there that is more robust.

 

[rbattelle]

i just decided to rant a little. if you are going to put the pump in a more remote area(the tank),it seems to me you would at least put a pump in there that is more robust.

Sure seems logical, doesn't it?