Uh, I hope it wasn't SOMEONE on the front of your truck that was causing the vibe... I'd better double check my grille...

Sorry, couldn't resist that one Back to reality... what specifically did they replace? I'm sure there are many other members here that would like to know as many of us have this annoying vibe. Thanks!

 

On mine it chirps sometimes on shut-down but the owners manual and d/s visor sticker says it is normal. I also experience a whoosh from the turbo and took it to the dealer who called the engineers and they said it's the pressure valve on the new quieter turbo releasing pressure when shutting down. If I wanted to eliminate noise my truck would become louder over-all and no damage is being done!!

 

they replaced the front drive shaft to fix the problem on my truck, they say its being caused by the front of the truck on some and the drive train is what is usually the problem, probably loose U joints