Where the vacuum line goes through the firewall.
Apr 3, 2024 at 8:14 AM
HVAC selector controls are not working, only the floor and defrost?
1995 GMC SONOMA
WELCH690
- MEMBER
- 2 POSTS
Advertisement
JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Hi,
I believe you will find it on the driver's side of the firewall. I attached a pic of the supply under the hood that goes to the HVAC. See if it helps and let me know. Also, pic 2 is the schematic for under the dash.
Take care,
Joe
See pics below.
I believe you will find it on the driver's side of the firewall. I attached a pic of the supply under the hood that goes to the HVAC. See if it helps and let me know. Also, pic 2 is the schematic for under the dash.
Take care,
Joe
See pics below.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Apr 3, 2024 at 7:00 PM
Diagrams are unclear?
Apr 5, 2024 at 10:14 AM
STRAILER
- ✓ASE Certified Mechanic
- 54,837 POSTS
Here are more which is what AllData gives us. Check out the images (below). Let us know if you need anything else.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Apr 5, 2024 at 10:19 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.