I am going crazy with this. I bought a used 2008 Buick Lucerne with a 3.8 engine. I never noticed the loud raspy/ gutteral acceleration sound. I am convinced that this is not normal. At times I have to raise the radio volume and crack the window to drown out the sound! I have driven the EXACT same car sitting at the dealer and this sound is NOT present in that car but I can't seem to get any of 3 different appointments I have made at 2 different dealers to hear this. PLEASE. ANY SUGGESTIONS WILL BE APPRECIATED.
YOU CAN ONLY HEAR THIS FROM THE DRIVERS SEAT.(Passenger seat is quiet)
IT DOES VARY IN LOUDNESS (Of course it is always quiet when I take it in)
IF I ACCELERATE AROUND A CORNER THE SOUND WILL BRIEFLY DISAPPEAR UNTIL IT STRAIGHTENS OUT. (They told me that the engine and the exhaust don't move independently) Then why is there a flex pipe? They just shrug their shoulders.
THE HEAT SHIELD AROUND THE EXHAUST ON THE DRIVERS SIDE HAD 2 OF THE BOLTS ALMOST COMPLETELY OUT WHEN INSPECTED.
( implying in my thoughts that someone was in the flex joint of the exhaust)
Dealers have stated that the loose bolts means nothing. Probably weren't put in at factory. No work was reported being done in that area. They said if it was an exhaust leak it would be present at all times. I have begged them to disassemble the flex joint and inspect the pipes and gaskets. They haven't and obviously don't think it is necessary.
This spring I will most likely do this my self to rule this out.
What else could this be if not the exhaust
Sunday, January 16th, 2011 AT 6:29 PM