OEM Scion Throttle Body

Scion Throttle Body Parts Questions & Experts Answers

• Throttle Body
  22210-21020
  Q: How to service and repair the throttle body on Scion xA?

  A: A driver should begin throttle body servicing and repairs by draining engine coolant. The air cleaner service begins with unfastening connections for the mass air flow meter connector along with VSV connector and wire harness clamp and fuel vapor feed hoses No. 1 and No. 2 and ventilation hose before unlocking the 2 clamp hooks then loosening the hose clamp to extract the air cleaner cap and filter element followed by removing the 4 bolts securing the air cleaner case. Unfasten the nut connecting parts of the accelerator control cable assembly. Separated transmission oil level gauge and oil filler tube assemblies by disconnecting throttle position sensor wire along with hose and unthreading clamp bolt and oil cooler tube but also disconnecting transmission oil pipe and its O-ring to remove. The procedure to remove throttle body assembly starts by disconnecting ISC valve connector and throttle position sensor connector (M/T TRANSAXLE) before removing the wire harness clamp and the bolt and 2 nuts to separate the accelerator control cable bracket and throttle body while also removing the gasket from the intake manifold and disconnecting water bypass hoses. Workplace requires the removal of ISC valve through 3 screw and gasket extraction followed by throttle position sensor removal operated through 2 screws. The throttle position sensor needs to be installed with closed throttle valve position while rotating it 45 degrees clockwise before tightening it to 2.0 N.m (20 kgf.cm, 17 in.lbf). Place a new gasket on the throttle body followed by installing the ISC valve through its three screws while torquing to 3.4 N.m (35 kgf.cm, 30 in.lbf). The installation involves connecting water bypass hoses while using a new intake manifold gasket before bolt and nut installation of the throttle body and accelerator control bracket which requires 30 N.m (306 kgf.cm, 22 ft.lbf) torque followed by wire harness clamp and throttle position sensor connector (M/T TRANSAXLE) and ISC valve connector. Connect and tighten the transmission oil filler tube sub-assembly using a new O-ring, bolt, 5.5 N.m torque (56 kgf.cm, 49 in.lbf) and the oil cooler tube clamp with the bolt at 5.5 N.m (56 kgf.cm, 49 in.lbf) followed by hose and throttle position sensor connector. The technician should install the transmission oil level gauge sub-assembly and then the accelerator control cable assembly while torquing both components to 13 N.m (133 kgf.cm, 10 ft.lbf). You will complete the air cleaner installation by using three bolts to join the air cleaner case to its bracket with 7.8 N.m torque (80 kgf.cm or 69 in.lbf) before fastening the inlet to the engine compartment using a bolt torqued to 7.5 N.m (76 kgf.cm or 66 in.lbf). Engine coolant addition follows then a leak check must be performed.
• Throttle Body
  22030-0H021
  Q: How to service and repair the throttle body on Scion tC?

  A: The service and repair work on throttle bodies begins with draining engine coolant followed by disconnection of the negative battery terminal cable and maintenance of a 90-second wait before proceeding. Start repairs by first unscrewing the 2 engine cover nuts and then disconnecting power wires from the mass air flow meter and purge VSV while you detach the wire harness clamp and disassemble the No. 2 ventilation hose, purge line hoses from throttle body and purge VSV, also remove the No. 1 air cleaner hose. To obtain access to the air cleaner assembly disconnect two hook clamps which then allows removal of the air cleaner cap followed by taking out the air cleaner filter element. To access the throttle body first disconnect the water by-pass hoses as well as the No. 1 throttle body hose and throttle position sensor and control motor connector and afterward remove the wire harness clamp and fuel tube from its place. Begin the procedure by removing the 4 bolts from the fuel pipe support and throttle body whereafter removing the gasket on the intake manifold. Apply a new gasket to the intake manifold before securing the throttle body and fuel pipe clamp through 4 bolts tightened at 30 N.m (305 kgf.cm, 22 in.lbf). At the same time, insert the fuel tube into the clamp and install the wire harness clamp. At the correct angle position the paint mark and hose clamp during connection of the throttle position sensor and control motor connector and the No. 1 throttle body hose and the No. 2 water by-pass hose. Perform the same process for connecting the by-pass hose to its manifold. Place the air cleaner filter element with proper orientation onto the air cleaner case before inserting the hinge part of the air cleaner cap while hanging the two hook clamps. The alignment of the match marks on the No. 1 air cleaner hose and throttle body must be accomplished before the hose is connected and the No. 1 air cleaner clamp is unfastened to maintain proper hose clamp positioning. The purge VSV with its hose should connect to the throttle body along with the purge line hose. At the same time the No. 2 ventilation hose must link to the cylinder head cover while maintaining correct positioning for all paint marks and hose clamps. Mount the wire harness clamp then link both the purge VSV connector and the mass air flow meter connector. The cable connections to the negative battery terminal should be reestablished followed by engine coolant addition while confirming no coolant escape occurs. After installation of the engine cover the final step involves torquing the 2 nuts to 7.0 N.m (71 kgf.cm, 62 in.lbf) while specific systems need initialization after battery terminal removal.
• Throttle Body
  22030-0H031
  Q: How to remove the throttle body assembly on Scion xB?

  A: The removal process of throttle body assembly from 2AZ-FE engine control system starts with draining engine coolant. The first step is to eliminate the No. 1 engine cover sub-assembly through the removal of 2 nuts. The procedure begins by disconnecting the mass air flow meter connector followed by wire harness separation and disconnection of the No. 1 vacuum switching valve. Next is ventilation hose removal and separation of the No. 2 fuel vapor feed hose. The technician should loosen the No. 1 air cleaner hose clamp and unlock the air cleaner assembly clamp before removing the air cleaner filter element. The procedure for removing the throttle body assembly begins by taking out the No. 2 fuel vapor feed hose followed by the No. 1 water by-pass hose then the No. 2 water by-pass hose followed by disconnection of the connector then the throttle hose. Disconnect the 4 bolts to remove the fuel pipe support combined with throttle body assembly and pull off the gasket from the intake manifold.