[jklm]

Hi, my Fisker Karma left muffler makes from time to time a lot of noise, mainly when I let go off the accelerator. I knocked on it on several places but it still continue. What are the alternatives ?

 

[LonePalmBJ]

Hi, my Fisker Karma left muffler makes from time to time a lot of noise, mainly when I let go off the accelerator. I knocked on it on several places but it still continue. What are the alternatives ?

Are you sure it's actually the muffler, and not the much more common - and easy to fix - heat shield rattle? Search these forums for "Rattle" or "Heat Shield" and you'll find lots and lots of discussions, as well as the simple remedies.

Good luck!