OEM Mercury Grand Marquis Steering Column

Mercury Grand Marquis Steering Column Parts and Q&A

• Steering Column
  7W7Z-3C529-A
  Q: How to Service and Repair the Steering Column on Mercury Grand Marquis?

  A:

  A proper servicing and repair of the Steering Shaft requires initial Clock Spring removal according to safety warnings to protect yourself. Service activities first begin with disconnecting the steering column followed by detachment of the multifunction switch. The simultaneous removal of Ignition Lock Cylinder and Ignition Switch should be avoided because it can hurt the ignition switch; make sure to put the ignition key in the OFF position first then take out the screw and the ignition switch while discarding the screw afterwards. Drivers must first engage the brake Shift Interlock Solenoid manual override during column shift operations to place the gear shift lever in its lowest position before removing the three Clock Spring mounting bracket screws which should be discarded. The brake shift interlock solenoid can be removed after pulling the park position switch while releasing the attached clip together with removal of both the inhibitor spring and inhibitor. Make sure to clean these components thoroughly. The gearshift lever screw and gearshift lever must be removed before taking out the shift cable bracket with its two bolts which are also discarded. The floor shift vehicles need the removal of two bolts and the inhibitor cable bracket with bolt disposal. The floor shift procedure requires installing the inhibitor cable bracket followed by the two bolts while column shift requires starting with shift cable bracket installation and the two bolts before adding the gearshift lever and screw. Clean the grease-free space inside the inhibitor pocket where the brake shift interlock solenoid plunger rests then place the gear shift lever in the lowest gear position before fully inserting the inhibitor into its cavity while installing the inhibitor spring and applying grease both to the outer inhibitor surfaces and inside the inhibitor spring pocket. You need to insert the park position switch together with the brake shift interlock solenoid before simply connecting the clip. When installing all vehicles require the Clock Spring mounting bracket with its three screws after placing the ignition key in OFF for installing the ignition switch and its screw before moving to multifunction switch installation and proceeding to the steering column and Clock Spring.