: 98 deville fluttering sound

07-09-07, 01:22 PM
I just bought a 98 Deville with the 4.6 Northstar and there is a fluttering sound (from the exhaust I think) during acceleration, and goes away when coasting. Any one have some ideas about what I should be looking at?

07-09-07, 07:48 PM
Is it coming from the exhaust tips (misfire) or upline somewhere (exhaust leak)?

10-23-07, 05:36 PM
I wish i could help..i have the same car..