FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Checking the Mechanical Operation of the Flap




Checking The Mechanical Operation Of The Flap












^ Turn the ignition switch to the OFF position.
^ Wait for 10 seconds.
^ Open and close the flap valve by hand.
^ The flap valve should not bind in any position.
^ The spring should return the flap valve to the stop screw.
^ No external objects, hoses, cables, etc. must obstruct the movement of the throttle arm.

Is the function correct?

NO ^ Continue With Checking The Mechanical Operation Of The Flap

YES ^ Checking the Control Module's Flap Motor Output


Can the fault be rectified without changing the throttle body?

NO ^ Changing Components

YES ^ Diagnostic Procedure