Looking for the blend door . . .
My 1994 Grand Cherokee Limited with the inline 6 is having some heater / AC issues.
When the ambient temp is hot, the Jeep blows warm air. When it's cold outside, the Jeep blows cool air. I had a tech look at the AC system and he seems to think that, although it could be low, it should be alright.
He says that it could be the blend door motor is non functional. Here's my issue with that; I've started taking the dash apart and found the actuator for the exterior door, that works. I watched it open and close.
I found another actuator near the center of the dash behind the ashtray. I couldn't see any movement of it, but I'd cycle through the interior vents and the airflow changed to the appropriate vents.
Is there a third blend door that mixes the cool air with warm air? I do have ATC but not dual climate controls. If there is a third door, where is it?
And yes, I do know about heatertreater.net, but if there are only two blend doors, then my door are fully functional.