OEM Mercury Grand Marquis Vehicle Speed Sensor

Mercury Grand Marquis Vehicle Speed Sensor Parts Questions & Experts Answers

• Vehicle Speed Sensor
  6L3Z-7H103-AA
  Q: How to service the rear Vehicle Speed Sensor on Mercury Grand Marquis?

  A: Service of the rear wheel speed sensor demands that you disable fire suppression systems when present along with removing the rear Seat Cushion. The technician must disconnect the rear wheel speed sensor electrical connector and direct the wheel speed sensor harness grommet through the opening in the passenger compartment floor. All Air Suspension system power must be switched off before hoisting, jacking or towing the vehicle to stop any unpredictable air spring pressure or vacuum changes that could move the vehicle and harm people; equiped vehicles require turning on their air suspension service switch to OFF. Place the vehicle in NEUTRAL gear before installing it onto a hoist and then separate the wheel speed sensor harness clips. Insert the new sensor by tightening it to 7 Nm while installation is in progress. The installation process requires repowering the fire suppression system while turning the air suspension service switch ON provided the system features such a switch.