Sequoia LTD 4WD V8-4.7L (2UZ-FE) (2001)
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Idle Up Control Valve: Testing and Inspection
INSPECTION
1. TURN AIR CONDITIONING SWITCH OFF
2. CHECK IDLE-UP
a. Start the engine and run it at idle.
b. Fully turn the steering wheel.
c. Check that the engine rotations decrease when the vacuum hose of the air control valve is pinched.
d. Check that the engine rotations increase when the hose is released.
