The service I was talking about included the change of the timing belt and a LOT of other components of the motor. I most of the time take my car to a Lexus dealership for service. I finally took my car there today and the problem turned out to be the two fans that work with the A/C and the radiator which come together. Also, they found an oil leak. FYI my car has 143000 miles but the mechanical aspect other than what they are repairing is all in pristine condition. I hope that it doesn't give me more problems or else I'll have to find my poor baby a new home. I really wish to do the work myself but it is a hybrid and this car's engineering is more complicated than many think.