I've had my exhaust system replaced twice and the sound still persist. I have it back at the dealership and they can't replicate the sound. I've even provided them the aforementioned TSB and they say that's not it either. I went on a ride-along with the technician and was unable to reproduce the sound due to the engine not being warm enough - even though I advised it needed to be driven further to get to the sound to be present. I asked them if they drove it afterwards and they said they drove it "about" 10 miles out and 10 miles back.
I'm considering taking it to another dealership - will my case notes and warranty work be available for them to review?
I had my truck into have the negative power cable replaced - what a joke that was - and suddenly my AC is out? I looked on the invoice and they said I declined service for AC refrigerant leak? Yeah, I want to decline service for something that is covered? I just love adding extra trips to the dealership, right? Low and behold I had to get a new AC condenser.