Air door part question
 

I am replacing the fresh air door under the cowl. There is a plastic piece with a hole in it that the pin on the door goes in on the back side. The plastic piece is loose and moves around. I have looked in the LMC and truck shop catalogs and haven't seen where I can get a new one. Does anyone know if this is available anywhere?

Re: Air door part question
 

Not available. You'll have to fab one. There is a thread on here that shows several ideas.
The plastic piece is secured with a plastic nut on the inside of the cab behind the glovebox. Have you checked to see if the nut is missing or loose? May be as easy as that.

Re: Air door part question
 

No I didn look behind it to see but the heater box and glove box are out so it will be easy to check . Thanks

Re: Air door part question
 

The fresh air door on the cowl is available, and includes the cast-in (molded-in) axle part that goes into one of the receivers. If I'm reading this right you need the white plastic piece itself?

If it's jus a wear issue, can you sleeve the door axle somehow to make it bigger so it's a better fit? Just a random thought...

Re: Air door part question
 

I bought a new door and noticed the plastic piece was sloppy when I went to put it in. I will check the back nut when I get home from work and see if it is loose. Researching this today I also found out that I am missing a spring in there also that is not available 😳

Re: Air door part question
 

That was it, the nut was loose behind the glove box, carefully tightened it up cause I was parinoid I would break the plastic, and now it is tight!

Thanks for the info, I learn something new everyday here!

Re: Air door part question
 

Can someone explain where this is located? Is it an ac only thing maybe? I have a non ac truck and the only fresh air flap doors that I know of are in the heater box then there are one on each side that open and close with the pull/push rod in the kick panel. If there is some other door/flap I want to be sure to check it out before finishing up the restore. Also how does it open and close?

Re: Air door part question
 

I think these are only on ac cab trucks the door is under the cowl and the vacuum actuator is on the fire wall near the blower fan. You can see the vacuum actuator in this pic

Re: Air door part question
 

Here is the plastic part.:chevy:

Re: Air door part question
 

Thanks for clearing that up for me.