GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Firebird 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Intake Air Temperature Sensor Replacement

Intake Air Temperature (IAT) Sensor

The IAT sensor is mounted in the Air Intake Resonator.

Removal Procedure

    Object Number: 21677 Size: SH
  1. Disconnect the IAT sensor electrical connector.
  2. Carefully remove the IAT sensor (snaps into place).

Installation Procedure

    Object Number: 21677 Size: SH
  1. Install the IAT Sensor into the Air Intake Resonator (snaps into place).
  2. Connect the IAT Sensor electrical connector.