Explorer 2WD V6-245 4.0L VIN X SFI (1999)
Throttle Body: Description and Operation
The throttle body controls the air flow to the engine through a butterfly valve. The throttle body includes:
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a preset stop to locate the Wide Open Throttle (WOT).
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a Throttle Position (TP) sensor.
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the canister purge tap for evaporative emissions control.
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a sealant on the butterfly valve to reduce air flow when the throttle is closed (do not remove or clean sealant) and to reduce sludge buildup.
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a closed throttle stop screw.
