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Home >> Mercury >> 2008 >> Sable Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Description And Operation (Except Diesel & Hybrid) >> Intake Air Systems >> Throttle Body System Overview >> Features of the Throttle Body Assembly include:

Features of the Throttle Body Assembly include:

  1. IAC valve assembly mounted directly to the throttle body assembly (some vehicles).
  2. A pre-set stop to locate the WOT position.
  3. An air supply channel upstream of the throttle plate to provide fresh air to the PCV system (some vehicles only).
  4. Individual vacuum taps for PCV, EGR, EVAP and miscellaneous control signals (some vehicles only).
  5. PCV air return (if applicable).
  6. A throttle body-mounted TP sensor.
  7. A sealant/coating on the throttle bore and throttle plate makes the throttle body air flow tolerant to engine intake sludge accumulation. These throttle body assemblies must not be cleaned and have a white/black attention decal advising not to clean.
  8. A non-adjustable stop screw for close plate idle air flow.
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