My 1994 GMC Jimmy makes a growling noise only when the A/C is on. It always happens when going from 0-15 mph from a dead stop. It also happens whenever coming to a complete stop, again at 15-0mph. It stops making the noise after speeds higher than 15 mph. If you shut the A/C off, it goes away.
May 28, 2012 at 8:28 PM