Installation Procedure

Fig 1: View Of Intake Air Temperature Sensor

Courtesy of GENERAL MOTORS CORP.

NOTE: Use care when cleaning the old gasket from the aluminum surfaces in order to prevent damage to the sealing surfaces.

Clean the gasket mating surface on the intake manifold.

NOTE: Do not subject a throttle body assembly which contains the following components to an immersion cleaner or a strong solvent:

Throttle position (TP) sensor
Idle air control (IAC) valve
Sealed throttle shaft bearings

The cleaners will damage the electric components or sensors.
The cleaners will damage some of these components that contain seals or O-rings.
Solvents can wash away or break down the grease used on non-serviceable throttle shaft bearings.
Never use a wire brush or scraper to clean the throttle body. A wire brush or sharp tools may damage the throttle body components.
Do not use a cleaner that contains methyl ethyl ketone. This extremely strong solvent may damage components and is not necessary for this type of cleaning.

Clean the throttle body.
Install the throttle body assembly with a new gasket to the intake manifold.

NOTE: Refer to Fastener Notice .

Install the throttle body retaining nuts.
Tighten: Tighten the throttle body retaining nuts to 10 N.m (89 lb in) .

Fig 2: Identifying Sensors, Connectors And Covers

Courtesy of GENERAL MOTORS CORP.

Connect the coolant hoses to the throttle body.
Connect the ETC connector.
Connect the vacuum hoses to the throttle body.
Install the air intake tube.
Connect the breather hose to the valve cover.
Connect the IAT sensor connector.
Connect the negative battery cable.
Fill the cooling system.