Knock Sensor: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Two | 0.7 | 0.4 | B | After Alternator And Warm Air Blower Are Removed On 911 Models. |
| One | 0.4 | 0.2 | B | After Alternator And Warm Air Blower Are Removed On 911 Models. |