OEM Scion xB Knock Sensor

Scion xB Knock Sensor Parts and Q&A

• Knock Sensor
  89615-06010
  Q: How to install the knock sensor and complete the assembly process on Scion xB?

  A:

  Installing the knock sensor begins with tightening the nut to 20 Nm (205 kgf-cm, 15 ft-lbf) while connecting the sensor connector. After inserting the No. 1 Intake Manifold insulator you must place a new gasket into the intake manifold before torquing 5 bolts and 2 nuts to 30 Nm (306 kgf-cm, 22 ft-lbf). First secure the wire harness clamp on the intake manifold before uniting the check valve hose with the union. Afterwards install the ventilation hose. The installation of fuel delivery pipe sub-assembly starts with its combination with fuel tube sub-assembly followed by fuel tube sub-assembly installation. The vehicle requires installation of its Throttle Body assembly before adding the outer cowl top panel and dual front Wiper Motor and link assemblies and right and left cowl top ventilator louvers. The installation sequence includes applying the hood to cowl top seal followed by both front wiper arm and blade assembly installation for left and right sides before adding the windshield wiper arm cover. The air cleaner cap sub-assembly needs installation with the No. 1 air cleaner hose before adding engine coolant then checking for leaks and installing the No. 1 engine cover.
• Knock Sensor
  89615-52030
  Q: How to replace the Knock Sensor on Scion xB?

  A:

  Replacing the Knock Sensor requires the engine coolant drainage followed by air cleaner assembly separation and accelerator control cable disconnection. Start by taking off the transmission oil level gauge sub-assembly and transmission oil filler tube sub-assembly that belong to the A/T transaxle but then separate the Throttle Body assembly while disconnecting the ISC valve connector along with the throttle position sensor connector (for M/T transaxle) followed by removing the wire harness clamp and the bolt and two nuts which unmount the accelerator control cable bracket and throttle body and finally remove the gasket from the Intake Manifold. After removing the four nuts from the cylinder head cover No.2 follow these steps: disconnect the radiator hose inlet, remove the oil level gauge sub-assembly, detach the ventilation hose and union to connector tube hose, and then lose three wire harness clamps before removing the three bolts and two nuts in the specified sequence and the gasket from the intake manifold. To install the new knock sensor the Special Service Tool: 09816-30010 must be used to separate the sensor from its connector but torque it to 44 N.m (450 kgf.cm, 32 ft.lbf) when replaced. Install the intake manifold with new gasket while mounting three bolts and two nuts even throughout with a torque of 30 N.m (306 kgf.cm, 22 ft.lbf), attain the three wire harness clamps before reuniting the union to connector tube hose and ventilation hose. Install the oil level gauge sub-assembly following the connection of the radiator hose inlet before proceeding with cylinder head cover No.2 installation where you must tighten nut A first then nut B to 7.0 Nm (71 kgf.cm, 62 in.lbf). The new throttle assembly gasket needs installation first before securing its bolt and two nuts to 30 N.m (306 kgf.cm, 22 ft.lbf) throughout. Keep the wire harness clamp positioned and reconnect the throttle position sensor connector for (M/T transaxle) and ISC valve connector. The last sequence includes the installation of the A/T transaxle's transmission oil filler tube sub-assembly and transmission oil level gauge sub-assembly followed by accelerator control cable assembly, air cleaner assembly, engine coolant addition with leak detection methodology.