Put a new fuel pump in my Buick about 8 months ago and it ran great.
Well went out and tried to start it about 2 months ago and it would not start.
well I just got around to looking at it because I don't drive it that much. Checked to see if it was getting power when I turned the key on, so I had the wife try to crank the motor over while i checked the test light. Nothing, so I ran a ground & a power strait from the Battery. Now my test light came on but still was not pumping. Ok so I took the pump out turned on the Battery charger and hooked it up. Yep it ran, RRRRRRR.
Well this is the first year that Buick put a electric fuel pump behind a 455 motor so there is not a lot of info that I have found. I looked to see if there was some type of fuel pressure regulator but I don't see one. though it could be built in to the pump it's self. I guess the float needles could be stuck in the carb again, but before I could hear the pump running and I can not now. I also had to use a fuel pump from a Chevy Corvair the last time because they don't make these Buick pumps anymore. they only made them that one year and I think I know why. I would like to go with a external fuel pump instead of having to tear open the tank every time this thing don't want to run, which seems to be more then it wants to run. Any suggestions for running a external pump??? Oh I also took the block off plate for the fuel pump on the driver's side of the block and pulled the distributor to see it there was a pump button on the end of the cam bolt to pump a mechanical pump and there was not. Thanks for any advice.