Calling all those using a Walbro 255LPH fuel pump!
11-24-2006, 08:43 PM
#1
Calling all those using either a Walbro 255LPH or stock 4th gen fuel pump!
I just installed mine a couple of days ago. Just before returning home tonight, my car ('97 w/ 3.5 swap) began chugging, then running smooth, chugging, running smooth, etc. Just for the heck of it, I decided to fill up my tank (it still registered 1/4 tank when I filled it up). Just after filling it up, it ran perfectly smooth again (and still does).
HERE'S THE MAIN QUESTION:
Is the filter element that attaches to the fuel pump itself (at the pump's primary fuel inlet with a metal retaining clip) supposed to be installed so that it points UP (toward the fuel's surface) or DOWN (toward the bottom of the tank)? I installed mine with the filter pointing up and I think, as a result, the filter may be partially exposed to air in the tank as the fuel level falls (resulting in an intake mixture of both fuel and air). Anyone? Thanks.
HERE'S THE MAIN QUESTION:
Is the filter element that attaches to the fuel pump itself (at the pump's primary fuel inlet with a metal retaining clip) supposed to be installed so that it points UP (toward the fuel's surface) or DOWN (toward the bottom of the tank)? I installed mine with the filter pointing up and I think, as a result, the filter may be partially exposed to air in the tank as the fuel level falls (resulting in an intake mixture of both fuel and air). Anyone? Thanks.
11-24-2006, 10:55 PM
#2
sorry i dont have this pump myself... but what you say makes sense and does explain why it runs fine with a full tank, and c00k00 as the gas goes down. flip the element around and see if it still does it. good luck
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