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Old 07-16-2008, 02:09 PM   #5
Scooby Specialist
Member#: 84482
Join Date: Apr 2005
Chapter/Region: Tri-State
Location: PA / Element Tuning
2005 STI.UR gt4088r
E85 pro comp sti


Originally Posted by charliew View Post
You might have some object such as pieces of fuel hose stuck in the line restricting the flow. The fpr return line should not be restricted and allow any pressure except for the size of the line. It should be open all the way to the tank with no restriction.

It sounds like you have mistaken the pressure feed line for the return line.

You have a feed line from the pumps, under pressure, a single line with a tee to the rails, or two lines to the rails, under pressure, and the return line that only the size of the line is the restriction to the tank.

I guess with no vaccum to the fpr such as when you crank the motor the fpr is closed and the spring opens at the set pressure to return the fuel to the tank. You might put a hose on the return fitting into a bucket and see what the pressure goes to with the key on. That would tell you if the return line to the tank is where the restriction is.
yeah you are right...i confused the return and pressure line...

yeah ill explain to the best i can...theres two lines coming from the fuel system(tank and fuel pumps)...the left line goes into a fuel filter and then runs to the fuel rails(i believe pressure line) and then the other line fuel line goes from the fuel rail to the t and then into the bottom of the fpr and then through the fpr back to the (return line)

the burst is where the fpr line leaving the fpr meets the fuel line at the t...its right before the t..thats where it is wanting to bubble...i pulled the tee off and there was nothing resticting the line going to through the T....

so the fuel must be getting stuck trying to go back into the fpr from the fuel rail return line

so the fuel must be coming from the return line from the fuel rails and then going through the t and getting stuck at the fpr and the weak point is right before the t and that is where it is wanting to burst

does that seem right??
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