See HEATED OXYGEN SENSOR under SENSORS & SWITCHES.
On 3.8L, remove fuel injector sight shield (upper engine cover) from engine. On all models, remove the electrical connector from the Idle Air Control (IAC) valve. see scheme 27or see scheme 28. Remove the IAC valve attaching screws. Remove the IAC valve from the throttle body. Remove the IAC valve "O" ring.
| CAUTION | The IAC valve may be damaged if installed with the cone (pintle) extended more than 1.10" (28 mm). Measure the distance that the valve is extended before installing a new valve. The distance from the idle air control valve motor housing to the end of the idle air control valve pintle should be less than 1.10" (28 mm). Manually compress the pintle until the extension is less than 1.10" (28 mm). |
Note. The IAC valve may be damaged if installed with the cone (pintle) extended more than 1.10" (28 mm). Measure the distance that the valve is extended before installing a new valve. The distance from the idle air control valve motor housing to the end of the idle air control valve pintle should be less than 1.10" (28 mm). Manually compress the pintle until the extension is less than 1.10" (28 mm).
- Install the new idle air control valve "O" ring to the idle air control valve. Install the idle air control valve into the throttle body. Install the idle air control valve attaching screws. See «TORQUE SPECIFICATIONS»(ref-159248-S05123880852003112000000) .
- Install the idle air control valve electrical connector to the idle air control valve. The Powertrain Control Module (PCM) will reset the idle air control valve whenever the ignition is turned ON, then OFF. Turn the ignition ON, then OFF. Start the engine and allow the engine to reach operating temperature.
- Install the fuel injector sight shield.
