Hot Idle COMPENSATOR
- Cool bi-metallic compensator valve to ensure valve is closed. Detach air hose from intake manifold. Using a vacuum pump, try to pull air through valve. No air should pass through valve.
- Using a heat lamp, heat bi-metallic valve to temperature above 155°F (69°C) and apply vacuum to hose. Air should pass through valve. Replace valve if it does not respond correctly.