OEM 2005 Toyota Tacoma Knock Sensor

2005 Toyota Tacoma Parts Questions & Experts Answers

• Q: How to replace the Knock Sensor on 2005 Toyota Tacoma?

  A: The procedure for replacing the Knock Sensor starts with disconnecting the battery cable from the negative terminal followed by removal of engine under cover sub-assembly No.1 (pre runner and 4WD type) and draining engine coolant. The technician must disconnect three components starting with the intake air connector before removing the throttle w/motor body assembly together with fuel hoses No.1 and No.2. Proceed to remove the intake manifold by disconnecting the fuel vapor feed hose from the VSV, the vacuum hose, the bolt and clamp bracket, the water bypass hose No.2, the ventilation hose No.3, the VSV connector, disengaging the engine wire harness clamp, disconnecting the compressor magnetic clutch connector (if equipped with air conditioning), disengaging the wire harness clamp, removing the bolt and harness clamp bracket, disconnecting the three connectors, removing the nut shown in the illustration, and disconnecting the engine wire harness from the relay block before removing the five bolts and two nuts to take off the intake manifold. The next step is to disconnect the knock control sensor by removing its bolt after disconnection from the connector. For installing the new knock control sensor begin by placing it correctly and use a bolt to secure it while torquing the bolt to 20 N.m (204 kgf.cm, 15 ft.lbf) and then establish the knock control sensor connector. For the intake manifold installation, place a new gasket onto the manifold, secure it with the five bolts and two nuts, torqued to 25 N.m (255 kgf.cm, 18 ft.lbf), connect the engine wire harness to the relay block, install the nut shown in the illustration, torqued to 10 N.m (102 kgf.cm, 7 ft.lbf), connect the three connectors, install the harness clamp bracket with the bolt, torqued to 8.2 N.m (84 kgf.cm, 73 in.lbf), engage the wire harness clamp, connect the compressor magnetic clutch connector (if equipped with air conditioning), engage the engine wire harness clamp, connect the VSV connector, connect the ventilation hose No.3, connect the water bypass hose No.2, install the clamp bracket with the bolt, torqued to 19 N.m (194 kgf.cm, 14 in.lbf), connect the vacuum hose, and connect the fuel vapor feed hose to the VSV. To complete the procedure add engine coolant then check for fuel and engine coolant leakage while reinstalling the Engine Under Cover Sub-assembly No.1 (pre-runner and 4WD type).