I have a 2000 Crysler Sebring Convertible. I just had to have all of my valves replaced due to a timing belt that jumped and caused damage to them. I just got it back today and after having it for a couple of hours it started idling at about 1500RPM's. It jumped all the way to 3000RPM's by the time I parked my car. I noticed that if my air conditioning was ON it idled lower (1000rpm) if turned OFF the air it jumped to 3000rpm's. Does it just need to be adjusted from the new work? Any ideas why it's linked to the air?