My name is Joyce and I have a 2007 Monte Carlo SS, about a year ago I had to have the temperature valve actuator replaced because is was making a loud clicking noise. Well, yesterday it started doing it again. The warranty on the replacement part has expired and I refuse to pay the dealer 600.00 to replace it again. Was wondering if there is more than one of these parts on the passenger side of the car because I can get a replacement part myself and have someone install it for me cheaper than the dealer. It is frustrating that this is the second time this part has gone bad and the car is only 4 years old. Any help would be greatly appreciated.