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Home >> Cadillac >> 1992 >> Seville STS >> Repair and Diagnosis (Single Page) >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System >> Idle Air Control (IAC) Valve >> Installation
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Idle Air Control (IAC) Valve: Installation

  1. Inspect gasket or "O" ring for damage. Replace as necessary. Check the extended distance of IAC pintle before installing. Damage will occur if measurement is incorrect. Distance must not exceed 1 1/8" (28 mm). Measurement should be taken from valve housing flange to end of pintle cone.
  2. To retract new IAC valve pintle, slowly exert finger pressure on valve. Install new "O" ring or gasket on valve. Coat "O" ring with engine oil. Install IAC valve. Tighten IAC valve to specification. See TORQUE SPECIFICATIONS  table at end of article. Install electrical connector.
  3. To reset IAC valve, refer to ADJUSTMENTS article in this section.