1、Fit For: 2000-2005 for Chevy Astro 4.3L,2000-2005 for GMC Safari 4.3L. 2000-2005 for Chevy Astro 4.3L. 2000-2005 for GMC Safari 4.3L. 4、When Should You Replace: The first and most common symptom of a bad fuel pump that you should notice is a whining noise from the gas tank.