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Throttle Body: Installation

  1. To install, reverse removal procedure using new gasket. Tighten retaining bolts to specification. See TORQUE SPECIFICATIONS  at end of article. Fill cooling system.
  2. If a new Idle Air Control (IAC) is being installed, ensure proper IAC pintle length setting prior to installation. See appropriate IDLE AIR CONTROL VALVE under REMOVAL & INSTALLATION  in this article. Adjust idle speed and TPS (if removed). See ON-VEHICLE ADJUSTMENTS  .


  1. Using new base gasket, install throttle body unit to intake manifold. Tighten retaining bolts to specification. See TORQUE SPECIFICATIONS  at end of article. Install new "O" rings onto fuel lines.
  2. Connect fuel feed and return lines to throttle body. Use a back-up wrench to prevent fuel line fittings in throttle body from turning. Tighten fuel line nuts to specification. See TORQUE SPECIFICATIONS  at end of article. Install vacuum hoses and brackets. To complete installation, reverse removal procedure.
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