" Jeep TJ HVAC Vent Not Switching? Do This Before tearing the Dash Apart"

Before the dash goes back in, this test matters. In this episode of our 97 Jeep TJ Rescue, we pre-test the heater box vacuum servos to confirm all HVAC functions work before final reassembly. Using a hand vacuum pump, we verify: Floor vents open and close properly Dash vents function correctly Defrost doors fully open, close, and seal This confirms that when vacuum is applied, all mode doors operate exactly as designed -eliminating guesswork once the dash, wiring, and ducting are installed. This is a critical step before: *Hanging the dash *Connecting harnesses and ductwork Final bolt-down and button-up Doing this saves time, frustration, and rework later. All of our links are in one place: CarConnectionBusinessNetwork.com (ccbusnet.com) Top right - hand corner of the homepage, click on our program partner logos to connect with them, let them know Motormouth sent you! You'll be in good hands! Links Include: YouTube, iHeartRadio, Facebook, Instagram, stevensvilleontheweb.ca click on the Bus' tab to find us! Merch that helps fund vehicle repairs and supports people fighting addiction Support the mission. Help us turn skill into second chances. Thank You for watching, Listening, and Connecting to our Motormouth Community, Welcome Aboard! Luv Y'all a Bunch! Happy Healthy Motoring Friends, NMJ #JeepTJ #HVACRepair #CarConnection