Air / Heater / Temperature actuators

[torhne]

I pulled my HVAC and cleaned it but didn't take pictures or make notes of where which actuator goes where.

I have 3 actuators. 2 are 5 pin, one is 3 pin.
I just don't want to put it back together and have to pull the dash again

 

[Caman96]

Never replaced, but I believe the 2 that are 5 pin are interchangeable and that only leaves 1 with a 3 prong plug.

What year truck? Any chance you could photo the 3 and post pictures? Thx

 

[Orpedcrow]

The 2 matching ones should be Mode and temp.(interchangeable) The third should be fresh/recirc.

 

[torhne]

Ah yeah I totally spaced on the year haha... It is a 99 K1500 Ext Cab
I looked closer and they are all 6 pin

I just found this:

You don't mention year or model of truck. For the 1998 K1500 the one in the drivers side footwell is the mode door which directs air to which vents depending on the vent selector. It's the easiest to replace. The blend door is on the coil box in the middle of the dash and determines what percentage of air goes through the heater coil and vaporization coil to adjust outlet air temperature. That one failed on me and it's not too bad but you have to drop the dash to get the actuator out. The last is the recirc door which is in the passenger side footwell. That one controls whether air is drawn from inside or outside the cabin and is supposedly a real pita to replace. The blend and recirc actuators I know are the same. The mode actuator I believe is a different part number.

So then it should be 3 pin by driver, then 6 and 6 on the air inlet door? I think?

 

[Caman96]

What are the actual 2 different part numbers? I just checked on GM parts giant.com and it’s telling me that it uses the same actuators as my 96. Can you take pictures of each, showing pins and showing part numbers?
1 of them should look like this.

You must be registered for see images attach

 

[torhne]

Ill look closer but my labels are so so soooo faded, that was half of my battle