Throttle Body: Service and Repair
THROTTLE BODYREMOVAL
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and can be ignited. Failure to follow these instructions may result in personal injury.
CAUTION: The throttle body bore and plate area have a special coating and cannot be cleaned, or damage to the throttle body may occur.
All engines
1. Disconnect the battery ground cable.
2. Remove the engine cover.
3. Remove the air cleaner assembly, air cleaner outlet tube and accelerator cable splash shield.
4. Disconnect the throttle body (TB) controls.
1 Disconnect the accelerator cable.
2 If equipped, disconnect the speed control cable.
3 Remove the throttle control return spring.
5. Disconnect the throttle position (TP) sensor electrical connector.
5.4L engines
6. Drain the engine cooling system.
7. Disconnect the coolant hoses.
All engines
8. Remove the bolts and the TB.
- Discard the TB gasket.
INSTALLATION
All engines
1. Install a new TB gasket, position the TB and tighten the four bolts in two stages.
- Stage 1: Tighten to 9 Nm (80 lb-in).
- Stage 2: Tighten an additional 90 degrees.
5.4L engines
2. Connect the coolant hoses.
3. Fill and bleed the engine cooling system.
All engines
4. Connect the TP sensor electrical connector.
5. Connect the throttle body (TB) controls.
1 Connect the accelerator cable.
2 If equipped, connect the speed control cable.
3 Install the throttle control return spring.
6. Install the air cleaner assembly, air cleaner outlet tube and accelerator cable splash shield.
7. Install the engine cover.
8. Connect the battery ground cable.