See Figure 1
The ventilation system of the Tempo/Topaz consists of the power ventilation system, plenum assembly, Instrument panel register duct, air inlet duct and individual outlet louvered vents. Each piece can be incorporated to create an entire ventilation system, or as a single component to accommodate an single preference.
REMOVAL & INSTALLATION
See Figure 2
The plenum assembly run from the register duct in the center of the dash panel, to each individual dash vent.
- Remove the lower portion of the dashboard, including glove box and panel below the steering wheel.
- Remove the center console.
- Identify, tag and remove the vacuum and electrical connections to the register duct.
- Remove the retaining screws securing the register duct and plenum assembly to the dashboard.
- Carefully lower and remove the register/plenum assembly.
- Remove the retaining screws securing the register duct to the plenum assembly.
- Connect and attach the plenum assembly to the register duct. Make sure the sealing gasket between the pieces is tight.
- Raise the assembly up to the dashboard. Secure the center section with retaining screws.
- Check and make sure that plenum assembly is mated correctly with the vents. Adjust if needed.
- Install the remaining retaining screws.
- Position glove box and install panel below steering wheel.
- Run ventilation system to make sure all outlets function correctly.
See Figure 3
The defroster nozzle is incorporated into the register duct.
- Remove the center console.
- Remove register/plenum assembly.
- With the assembly out of the vehicle, remove the retaining screws securing the defroster nozzle to the register duct.
- Check and make sure the gasket between the register duct and the defroster nozzle is in good shape. If not, replace gasket.
- Position defroster nozzle to register duct and secure with retaining screws.
- Position register/plenum assembly and secure with retaining screws.
- Run defroster and check for leaks or weak air-flow.
See Figures 4 and 5
The louvered vents control the amount of air flow as well as the direction of air flow coming from the ventilation system. These vents should be checked once a year to make sure nothing is blocking the air flow.
- Insert a thin bladed pry-tool between the vent and dashboard.
- Carefully work the vent assembly out of the dashboard.
To remove the louvered portion of the vent, proceed as follows:
- Insert a thin bladed pry-tool between the louvered portion and the vent housing.
- Carefully work the louvered portion out of the assembly. With the louver removed, the thumb wheel and outlet door are visible.
- Check each piece and replace broken components.
- If the vent has been taken apart, reassemble by positioning the outlet door and thumb wheel in the housing, and carefully applying pressure to the louver and press in the housing until it "clicks" into place.
- Carefully work the vent assembly into the dash hole, making sure it slides into the plenum tube.
- With all the vents installed, turn on the ventilation system and make sure that each vent works correctly.