1999 Ford Mustang new air pump installed as per code PO411

1999 FORD MUSTANG
15,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
MPCECCHETTI1
  • MEMBER
  • 2 POSTS
1999, 3.8L, california mustang 2 door coup.

New Electric air pump installed. when the engine is cold, the air pump sounds like an airplane, for about 20 seconds. (loud) Why ? should the new air pump sound like this ? when I bought the vehicle, I guess the air pump never turned on. when I drive it, sometimes the air pump goes off again, not to long. Was the air pump installed ok ? Help...
Aug 7, 2009 at 1:24 PM
Advertisement
Avatar
CYOUNGBERG
  • MEMBER
  • 2 POSTS
You find the answer yet? I'm having the same exact problem. Do you know what brand pump you used?
Aug 26, 2009 at 7:06 PM
Avatar
CYOUNGBERG
  • MEMBER
  • 2 POSTS
Pulled out the Dorman replacement and put in a motercraft. Noise went away.
Aug 31, 2009 at 11:28 PM
Advertisement