Expedition 4WD V8-281 4.6L SOHC (1998)
Side Air Bag: Description and Operation
Driver Side Air Bag Module
Driver Air Bag Module
The driver side air bag module:
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is replaced as an assembly.
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is mounted in the center of the steering wheel.
Steering Wheel Trim Cover
The steering wheel trim cover:
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encases the driver side air bag module and horn switch.
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has tear seams that separate to allow inflation of the air bag.
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must not be repainted for any reason.
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is a component of the driver side air bag module and is not repaired separately.
Air Bag
The air bag:
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is constructed of nylon.
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is a component of the driver side air bag module and is not replaced separately.
Inflator
The inflator:
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receives electrical energy when the air bag sensors close.
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contains an igniter that converts the electrical signal to thermal energy (heat), causing the ignition of the inflator gas generant.
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inflates the air bag with nitrogen gas after the chemical reaction takes place.
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is a component of the driver side air bag module and is not replaced separately.
Mounting Plate and Retainer Ring
The mounting plate and retainer ring:
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attach and seal the air bag to the inflator.
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attach the trim cover.
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mount the entire driver side air bag module to the steering wheel.
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are components of the driver side air bag module and are not replaced separately.
