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I have 2017 CX-5 GT, need help of solving noise issue please. When the car is idling/not in motion (It does not matter if the gear shifter in P,R,N or D and if my foot on the break pedal or not) I hear the thumping noise coming from under rear seat, if I push with my hand in the middle of the...

The weirdest thing happened to me yesterday. My car was working fine, perfectly. I just had the timing belt, water pump, alternator belt, and spark plugs changed like 3-4 weeks ago. Then all of a sudden the idle went crazy, going up and down. When i hit the gas it just it stalled and sounded...