My LR4 is 18mo new to me @ 66K miles. Love the vehicle. Little old lady original owner and LR dealer serviced. Had local independent shop change all fluids on purchase, no major items so far. When I’m accelerating OR decelerating past the 2700 rpm level, I get a whining/hard working kind of sound and minor vibration you can feel in the steering wheel. Again, both speeding up and decreasing speed, only through 2600-2800 rpm in any gear. Engine sounds strong below and above that point. Shop diagnosed it as a problem exhaust (thought they identified something loose inside), which I replaced, but did not address the problem. I would greatly appreciate any ideas and items to check on. Next stop would be the local LR dealer which I’m loath to do. Thanks