Crown Victoria V8-281 4.6L SFI (1998)
Air Register: Description and Operation
The A/C register assemblies contain the following features:
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Retaining tabs lock the assemblies into the A/C register housings of the instrument trim panels.
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Horizontal panels swivel and direct the outlet air up or down while the louvers permit side-to-side air distribution.
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The thumbwheel at the LH side of the A/C register controls the damper door to allow full volume of air or positive shut-off.
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If the thumbwheel becomes disengaged from the damper door actuating arm, it can be quickly re-engaged by cycling the thumbwheel either
full up or full down.
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The actuating arm is ramped along each side so that the thumbwheel tang will ride up the ramp and snap into the slot in the arm.