Caution: 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.
Caution: 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 TP sensor. Refer to
Throttle Position Sensor Replacement.
- Install the IAC valve. Refer to
Idle Air Control Valve Replacement.
- Install the throttle body assembly with a new gasket to the intake manifold.
Caution: Refer to Fastener Caution in the Preface section.
- Install the throttle body retaining bolts.
Tighten
Tighten the throttle body retaining bolts to 15 N·m (11 lb ft).
- Install the coolant hoses.
- Connect the vacuum hoses to the throttle body.
Note: Make sure the throttle control cables do not hold the throttle open. With the engine OFF, check to see that the accelerator pedal is free.
- Connect the throttle cables.
- Install the air intake tube.
- Connect the TP sensor connector and the IAC valve connector.
- Connect the negative battery cable.
- Fill the cooling system.