Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Land Cruiser
1984 Toyota Cab & Chassis DXSECTION Land Cruiser
- Remove HIC valve from air cleaner. Block intake manifold port. Blow through heated air cleaner port. No air should escape from atmospheric port below 81°F (27°C).
- Heat valve in hot water. DO NOT allow water inside valve. Block heated air cleaner port. Blow through intake manifold port.
- A small amount of air should flow when valve is between 81-122°F (27-50°C). A large amount of air should flow when valve is above 185°F (85°C).
THERMAL OR HIC VALVE OPERATING TEMPERATURES
| Application | Closing Temp. °F (°C) | Opening Temp. °F (°C) |
|---|---|---|
| Corolla | 72 (22) | 84 (29) |
| Land Cruiser | 81 (27) | 91 (33) |
| Pickup, 4Runner | 86 (30) | 113 (45) |
| Tercel | 72 (22) | 84 (29) |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.