Automatic Hot Air Intake
- Visually inspect all hoses for proper condition and connections.
- With engine idling, check that cold air intake is closed when engine is cold and open above specified temperature.
- If system does not respond properly at given temperatures, check air door or linkage for binding, and replace thermal valve as necessary.
HOT AIR INTAKE SYSTEM OPERATING TEMPERATURES
| Application | Closing Temp. °F (°C) | Opening Temp. °F (°C) |
|---|---|---|
| Land Cruiser | 81 (27) | 91 (33) |
| Pickup & 4-Runner | 86 (30) | 113 (45) |
| All Others | 72 (22) | 84 (29) |