u/ihatethisapp36

I just got a used ‘21 Ford explorer XLT for my wife from carvana, it has 52,000 miles, 1 owner and 0 accidents. It feels like it is breaking well but it’s making an unusual sound. Was wondering if anyone has heard this and knows what this is or use my 7 day return with carvana. I bought an f150 a month ago from them and it’s been amazing with 0 issues so I am just double checking. Thanks in advance!