i took my car to the dealer today to get the sunroof trim replaced and also to have a "howling" noise looked at that starts at 65 mph. i was told today that i had 2 hub that were going bad, my water pump was leaking and i had a trans cooler line that was starting to leak. the Car has about 38,6XX miles on it. i didn't have to pay for it because the car had a GM Certified Used Car Inspection done before i bought it. they replaced the trans cooler line and the water pump without even telling me untill i picked it up tonight.