I bought a 2008 Escalade Base with 69k on it last year. For awhile now I have been hearing a clicking/tapping noise as I drive at about 1-20ish mph. (Usually hear it with window down pulling up to military gate) For the life of me I can’t figure out what it is, it doesn’t sound like the engine because you only hear it when the car is rolling, and there is no noticeable click at any particular RPM when the car is stopped. Was wondering if anyone has had a little odd noise like this as I would love to eliminate whatever this problem is before my deployment so my wife can have peace of mind her car is going to drop dead while I’m gone.