Throttle Body: Service and Repair

COMPONENTS FOR REMOVAL AND INSTALLATION

THROTTLE BODY REMOVAL

1. DRAIN ENGINE COOLANT
2. REMOVE V-BANK COVER
3. DISCONNECT CONTROL CABLES FROM THROTTLE BODY
4. REMOVE INTAKE AIR CONNECTOR
5. REMOVE THROTTLE BODY
(a) Disconnect these connectors:
- Throttle position sensor connector
- w/TRAC:
Sub-throttle position sensor connector
- w/TRAC:
Sub-throttle actuator connector





(b) Disconnect these hoses from the throttle body:
(1) Water bypass hose from IAC valve
(2) Vacuum hose from VSV for EVAP





(c) Remove the 2 bolts and 2 nuts, disconnect the throttle body from the air intake chamber.

Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)





(d) Disconnect these hoses and remove the throttle body:
(1) PCV hose from throttle body
(2) Water bypass hose from throttle body
(e) Remove the throttle body gasket.

INSTALLATION HINT: Use a new gasket.

THROTTLE BODY INSTALLATION

INSTALLATION HINT: Installation is in the reverse order of removal.