Looking for help regarding this issue. I have looked at other posts and don't think I have quite found the answer. Here is my problem... some times when the ICE starts there is a very loud vibration/grinding sound. Sounds like it is coming from front drivers area. It goes for about 5-10 seconds and then is gone. It only happens when the ICE runs for the first time on a drive, and it doesn't happen every time. I have searched the vehicle for suspects of what can be making this sound and the only thing I have found is the exhaust is very close to the frame in one spot ( see picture ), and perhaps this is vibrating when the engine starts and then as it heat up the position changes so it does not vibrate any more. Any suggestions... What does your vehicle look like...? does the exhaust touch the frame?