OEM 2007 Toyota Tacoma Knock Sensor

2007 Toyota Tacoma Parts Questions & Experts Answers

• Q: How to service the knock sensor on 2007 Toyota Tacoma?

  A: Service of the knock sensor requires disconnecting the battery cable followed by engine under cover sub-assembly removal for 4WD and Pre-Runner models then draining engine coolant before disconnecting the intake air connector. Next, remove the throttle with motor body assembly, disconnect fuel hose and fuel hose No.2, and remove the intake manifold by disconnecting the fuel vapor feed hose from the VSV, the vacuum hose, the bolt and clamp bracket, the water by-pass 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 3 connectors, removing the nut shown in the illustration, and disconnecting the engine wire harness from the relay block before removing the 5 bolts and 2 nuts to take off the intake manifold. Detachment of the knock control sensor requires first disconnecting its connector followed by bolt removal. Attachment of the knock control sensor begins with installing the bolt while maintaining proper sensor angle before connecting its connector. Next, install a new gasket onto the intake manifold, then install the intake manifold with the 5 bolts and 2 nuts, torquing them 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 with a torque of 10 N.m (102 kgf.cm, 7 ft.lbf), connect the 3 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 by-pass 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. Proceed with installing the fuel hose along with fuel hose No.2 before placing the throttle and motor body assembly together with the intake air connector. The battery cable must be restored to its negative terminal with a torque of 3.9 N.m (40 kgf.cm, 35 in.lbf), while checking for fuel leakage followed by engine under cover sub-assembly No.1 installation (for both 4WD and Pre-Runner).