OEM 2005 Scion xA Knock Sensor

2005 Scion xA Knock Sensor Parts Q&A

• Q: How to replace the Knock Sensor on 2005 Scion xA?

  A: The first steps to replace the knock sensor start with coolant drain before removing the air cleaner assembly and separating the accelerator control cable assembly. Separate the transmission oil level gage sub-assembly (A/T transaxle) and the transmission oil filler tube sub-assembly (A/T transaxle) before disconnecting ISC valve connector and throttle position sensor connector (M/T transaxle) and removing the wire harness clamp and then taking off the accelerator control cable bracket and throttle body with its accompanying gasket from the intake manifold. Begin by removing the cylinder head cover No.2 through four nut removal and disconnecting the radiator hose inlet and then taking off the oil level gage sub-assembly. Start by disconnecting the ventilation hose followed by dissociating the union to connector tube hose then the 3 wire harness clamps. Remove the manifold gasket by unfastening the specified 3 bolts and 2 nuts. Remove the knock sensor with special service tool: 09816 30010 by disconnecting its connector. Use special service tool: 09816 30010 to install the new knock sensor and tighten the sensor to 44 N.m (450 kgf.cm, 32 ft.lbf) before reconnecting its connector. Install a new gasket on the intake manifold before installing the intake manifold through its 3 bolts and 2 nuts while applying uniform torque to 30 N.m (306 kgf.cm, 22 ft.lbf) in the specified sequence. After this step, install the 3 wire harness clamps and reconnect both the union to connector tube hose and the ventilation hose. Afterward, attach the oil level gage sub-assembly to the unit and put the radiator hose inlet into position along with cylinder head cover No.2 that requires tightening nut A first followed by nut B to 7.0 N.m (71 kgf.cm, 62 in.lbf). To complete the throttle body installation use a new gasket on the intake manifold and fasten the components together with the bolt and 2 nuts to 30 N.m (306 kgf.cm, 22 ft.lbf). Then proceed with installing the wire harness clamp while reattaching the throttle position sensor connector (M/T transaxle) and the ISC valve connector. As a final step, install the transmission oil filler tube sub-assembly (A/T transaxle) together with the transmission oil level gage sub-assembly (A/T transaxle) and the accelerator control cable assembly followed by the air cleaner assembly then top off the engine with coolant while inspecting for leaks.