Hi, I have a 2001 gt coupe with the driver and passanger slider heat controls. The drivers side will always be at the temp that I slide it to, however, the passanger side will either start cold or when it is hot will all of a sudden go cold. Usually you can make it go back warm by moving it up and down a couple times. It is really getting annoying though. My question is how do I fix this? Can I just get another coupe slider hvac and swap it out? I hope so. Any experience? Really appreciate it