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HVAC Blend Door Actuator - does anyone know?

2.3K views 4 replies 3 participants last post by  srfailor  
#1 ·
Which one I need to replace? I just got a 2003 6.0 and the AC and heat were great when I test drove it but now the passenger side ONLY blows heat regardless of the temp I set it on. It appears these trucks have 4 HVAC actuators and after some research I THINK I need to replace the lower 1 on the driver's side at approximately knee height. The truck has the dual climate in the front, but not the rear. Since this appears very common in these rigs, I was hoping 1 or some of you can confirm which it is. OR do I simply replace them all since it is so common? TIA.
 
Discussion starter · #3 ·
OK. I'll have to rewatch one of the many videos as I swear the guy said "I know it makes no sense but the passenger side controls the drivers side and visa-versa". Of course there are 4 of these darn actuators instead of just 1 lol.