engineKnock Sensorfor 2003 GMC Envoy 4.2L I6 · 4WDLabor Hours4.4hrRange: NaN–NaN hrConfidenceestimatedAt $110/hr (independent shop)$484Estimated labor cost. Parts not included.Other labor times on this vehicle100K Service2.6 hr12V Auxiliary Battery1.1 hr30K Service3.3 hr4WD Actuator4 hr60K Service2.4 hr90K Service2.4 hrABS Module2.1 hrABS Pump1.7 hrKnock Sensor on similar vehicles1997 Acura CL 2.2L I42 hr1997 Acura CL 3.0L V62 hr1998 Acura CL 2.2L I42 hr1998 Acura CL 3.0L V62 hr1999 Acura CL 2.2L I42 hr1999 Acura CL 3.0L V62 hr📝 Suggest a correction to this labor time