This 1995 GMC C1500 came in with the complaint that the air would blow from everywhere except the front vents. In using the controls, the air flow would adjust from the defrost to the floor. All other functions were okay as well.
The mode actuator is located under the driver’s side of the dash, above the gas pedal.
The part that I am pointing to is half of the actuator vent arm. The half that is attached to the mode actuator has to be rotated and rolled off of the attaching hook on the actuator assembly. The white plastic hook can be seen in the following picture. It is just above the screwdriver blade. Click on the picture to enlarge.The other half uses a push pin to attach the arm to the door lever. I used a large flat blade screwdriver to separate the arm from the door lever.
To install the new arm, I first attached it to the hook/pin on the actuator assembly. Then I lined up the push pin in the arm assembly with the hole in the door lever and snapped it into position.
The old attaching arm pieces and the new arm below. Somewhere along the way the plastic pieces broke and fell out. This allowed the two halves of the arm assembly to separate. Which in turn prevented the air flow door for the face vents to open properly.
I really need a diagram of how all the arms and servo is hooked up on my 95
Sorry, all I have are the couple of pictures in this repair article. Your best bet is to look for a HVAC case parts breakdown.
Thank you! I was planning on fabricating my own, but if I can pick it up cheap…all the better!
Dealership. Part number 52487131.
Where do I get the replacement hook/pin (plastic pieces and springs). I lost both of them and can’t find them anywhere.