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Home >> Oldsmobile >> 1991 >> Toronado Base >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Remove/Install/Overhaul >> Fuel System (TBI) >> Throttle Body >> Removal

Throttle Body: Removal

  1. Relieve fuel pressure. See FUEL PRESSURE RELIEF (TBI)  under FUEL SYSTEM (TBI). Disconnect negative battery cable. Remove air cleaner and related ducting.
  2. Remove electrical connectors from Idle Air Control (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.
  3. Remove fuel feed and return lines. Use 2 wrenches to prevent nuts in throttle body from coming loose. Remove fuel line "O" rings and discard. Remove throttle body retaining bolts. Remove TBI unit and base gasket. Discard base gasket.
WARNING: Pressure regulator spring is under heavy tension, and can cause injury if released. DO NOT  immerse cover in any type of cleaning solvent.
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