Throttle Body: Service and Repair

THROTTLE BODY












Removal

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 must be removed from the vehicle to be cleaned. Do not hold the throttle plate open with any object that could scratch the bore or plate while servicing or cleaning the throttle body.

1. Disconnect the battery ground cable.
2. Remove the air cleaner outlet pipe.
3. Disconnect the quick connect couplings and remove the crankcase vent tube.







4. Disconnect the generator wiring harness retainer from the air cleaner outlet pipe-to-throttle body (TB) adapter.
5. Remove the 4 bolts and position aside the air cleaner outlet tube-to-TB adapter.
6. Disconnect the electronic throttle control electrical connector.
7. Disconnect the throttle position (TP) sensor electrical connector.
8. Remove the 4 bolts and the vibration damper.
9. Remove the TB assembly.
- Discard the TB O-ring seal.

Installation
1. Using a new O-ring seal, position the TB and vibration damper and tighten the 4 bolts in 2 stages.
- Stage 1: Tighten to 9 Nm (80 lb-in).
- Stage 2: Tighten an additional 90 degrees.

2. Connect the TP sensor electrical connector.
3. Connect the electronic throttle control electrical connector.







4. Lubricate the air cleaner outlet pipe-to-TB adapter seal with clean engine coolant prior to installation.
5. Position the air cleaner outlet pipe-to-TB adapter and install the 4 bolts.
- Tighten to 10 Nm (89 lb-in).







6. Connect the generator wiring harness retainer to the air cleaner outlet tube-to-TB adapter.
7. Position the crankcase vent tube and connect the quick connect couplings.
8. Install the air cleaner outlet pipe.
9. Connect the battery ground cable.