2012 gmc terrain makes a clicking noise when pressing acceleration pedal. i habe changed oil, plugs and belts but still can't find source of tapping. also my tires are new, less then a year and constantly show low pressure. i have checked for nails but none found.
I was driving up a slushy hill and had to stop midway up the hill. once i proceeded up the hill my car just spun tire,so i put the car in reverse and backed back down the hill. i then drove to work and parked my car. when i started my car to leave work the service awd alert came on. this is the second time since dec. 2013 that the awd has gone out in my vehicle. i live in an area where snow is prevalent and purposely bought an awd vehicle for peace of mind and now for the second time it is out! *tr