Throttle Body: Installation

Using compressed air, clean all passages. Clean throttle body gasket surfaces. Install NEW gaskets, "O" rings and throttle bodies. See Figure. Tighten throttle body screws to specification. See TORQUE SPECIFICATIONS . To complete installation, reverse removal procedure. Fill cooling system with proper mix of water and coolant. If throttle body assemblies were removed from intake air control valve, throttle body lever adjustment may be necessary. See THROTTLE BODY LEVER ADJUSTMENT in ON-VEHICLE ADJUSTMENTS article.

To install, reverse removal procedure using NEW gaskets. Tighten bolts/nuts to specification. See TORQUE SPECIFICATIONS . If using original hose clamps on water by-pass hoses, install hose clamps as illustrated. See Fig 4. Fill cooling system.

Fig 1: Accelerator Position Sensor Retaining Screw Installation Sequence & Positioning Of Tabs On Washer Plate (GS300 & SC300)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Rotating Throttle Control Motor & Installing Retaining Screw "A" (GS300 & SC300)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Installing TP Sensor (GS300 & SC300)

Fig 4: Identifying Water By-Pass Hose Clamp Positions (GS300 & SC300)

To install, reverse removal procedure using NEW throttle body gasket. Tighten bolts/nuts to specification. See TORQUE SPECIFICATIONS . Fill cooling system.