Throttle Body: Removal
- Relieve fuel pressure. See FUEL PRESSURE RELIEF under FUEL SYSTEM (PFI) in this article. Remove air inlet ducts. Disconnect and mark electrical connections and vacuum hoses from throttle body. Disconnect control cables from throttle body.
- Drain cooling system. Remove coolant hoses. Remove throttle body retaining bolts. Remove throttle body and gasket.
NOTE:
Identification number is stamped on throttle body near coolant cover. Identification number must be used for ordering replacement components.
- Relieve fuel pressure. See FUEL PRESSURE RELIEF under FUEL SYSTEM (TBI) in this article. Disconnect negative battery cable. Remove air cleaner and related ducting.
- Remove electrical connectors from IAC, TPS and fuel injector(s). Lay wiring harness aside. Remove throttle cable, return springs, transmission/transaxle cable, and cruise control cable (if equipped). Label and remove vacuum hoses.
- Remove fuel feed and return lines. Use 2 wrenches to prevent fuel nuts in throttle body from loosening. Remove fuel line "O" rings and discard. Remove throttle body retaining bolts. Remove TBI unit and base gasket. Discard base gasket.