I have replaced the sending unit and fuel pump strainer on my girlfriends dads 95 buick lesabre limited due to a pin hole in the metal line on the sending unit. Now it runs rough have to push gas pedal to start and barley idles. He said latley he has been haven to push the pedal to start it but it is running worse than before. Is it possible that I have the return and feed fuel line switched and still run? That is the only thing i can think of i checked my work half a dozen times. Will probably change fuel filter just to eliminate that source as a problem.