YUP, my 2005 Grand Cherokee (HEMI) needs a $10 blend door actuator for the heater control. Super easy to replace once I get around to pulling the entire dash out. I'm sure I'll replace the heater core too, while I'm in there.... someday. I wouldn't care about it but it makes a really loud clicking sound until it finally catches. I've gotten use to the sound but everytime someone else rides with me they're like "what the hell is THAT nosie??? Why don't you FIX IT!" :BangHead::rofl: