I have a 2000 Blazer which will not prime at times. After you use ether or a little fuel poured in the intake it runs fine. It will usually start back up immediately, but if you wait a while it will not prime again. Sometimes youn can hear the pump prime when the key is in the on position and sometimes you cannot hear it. I've put two new fuel pumps in it and has made no diference. You can hear the relay working also.
Oct 15, 2009 at 7:14 AM