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I just used my 2001 7.3L Excursion 2WD to pull an RV Trailer from Houston to Jacksonville and back this weekend. I have the Hypertech Programmer set on Tow-Safe and the RV weighed about 6,000 lbs loaded. I had another 2,000 lbs cargo and people in the truck.
I noticed that when I would be going up a hill or trying to pass someone and the RPM's hit 3,000 I would hear a tinging sound almost like chains dragging on a trailer. Any thoughts on what that might be?
My fear is that the turbo is making the sound because I only heard it under a hard accelleration.