What is the easiest way to change the inlet air actuator?

THOMAS J JONAS

MEMBER
1993 CHEVROLET SILVERADO
5.7L
V8
4WD
AUTOMATIC
232,000 MILES

Which is located on the fire wall on the passenger side of the truck. Do you have to pull off the whole dashboard to change it? I keep hearing a clicking noise around that area, do I have to pull out the HVAC system too? I changed the actuator that is in the front middle of the dash but I still have the same clicking noise. Thanks

7 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,949 POSTS

They can be difficult to change depending on which one needs to be replaced, when the clicking noise is occurring, see if you can feel which one is making the noise. You can remove the glovebox to help gain access and I have all of the actuator locations in the images below. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

Images (Click to make bigger)

SPONSORED LINKS

Was this

answer

helpful?

Yes

Sunday, March 19th, 2023 AT 12:29 PM

THOMAS J JONAS

MEMBER
10 POSTS

It's the actuator that's on the firewall of course how do you change this one without a lot of work? I don't feel anything on the other two actuators. Thanks

Was this

answer

helpful?

Yes

Sunday, March 19th, 2023 AT 12:35 PM

THOMAS J JONAS

MEMBER
10 POSTS

I only hear the clicking noise after I've been driving awhile not when I first start the truck I tried all controls to hear the noise but no such luck.

Was this

answer

helpful?

Yes

Sunday, March 19th, 2023 AT 12:38 PM

KEN L

MASTER CERTIFIED MECHANIC
42,949 POSTS

Yep, some actuators are in a bad spot and will take some effort to change it. It is common for the actuator to click at different times, can you please turn the HVAC system off to see if you still hear the noise?

Was this

answer

helpful?

Yes

Monday, March 20th, 2023 AT 11:22 AM

THOMAS J JONAS