I changed the fuel pump in my 2001 SSEI because of a bad sender. Up to that point I had no other problems. After I changed the pump I have to crank then stop then crank again or crank for a long time to get the car to start. I am loosing pressure in the fuel system when the car is not running. I replaced the pump again (warranty) and it is doing the same thing only now I keep getting a "check gas cap" message and after a while of driving I will get a Check engine light and an evap code. I currently have the lines to the pump disconnected thinking that I need new o rings but I don't see any? The lines are the quick disconnect kind. I am thinking that it is not sealing thing and that is where I loose my pressure from. I don't see any visible leaks but I could smell fuel when I took the cover off of the fuel pump area. Am I just missing something?
When I looked at the lines they don't look like you can replace anything. The sleeve is hard plastic then it looks like orange (maybe the seal) but so far down I don't see how it could be removed. Anyway, I put the lines back on and pulled on them a bit and the next 3 times I started the car it started like it should. Came out of dinner and it was back to having to crank it twice to start it. I don't mind replacing what is bad I just don't know what I need to replace at this point.
I don't know, got it on ebay. When I did that last summer I did not know about all the problems people have with the cheap aftermarket pumps. If the pump is the problem, I would be willing to change it out for something that will fix the problem I just want to be sure that changing the pump will fix it because a Delphi pump is expensive. Other then loosing the prime, the pump works perfect..