OEM Mercury Grand Marquis Air Suspension

Mercury Grand Marquis Air Suspension Parts and Q&A

• Air Spring, Rear
  6W1Z-5560-AA
  Q: What precautions should be taken before disconnecting or removing air suspension components on Mercury Grand Marquis?

  A:

  A complete ventilation of air pressure from the air suspension system is necessary before starting any component removal or disconnecting process due to risk of serious personal injury. Refolding is necessary for every air spring before installation because dangerous ruptures may form when air springs are improperly folded leading to handling changes in the vehicle. A car driven with misfolded air springs requires a complete change of air springs as a replacement. Following these instructions becomes essential because failure to do so will cause severe harm to vehicle occupants. Refolding procedures must be reserved exclusively for air springs that carry no weight in their incorrect configuration and these procedures need to be conducted before placing rear springs into installation. Air springs exposed to incorrect folding must be replaced with fresh components either before delivery or after use. Air spring inflation should not occur when the item was emptied from the rebound hanging stance down to the jounce stop. New air spring installation requires complete suspension loading prohibition before using the air spring fill procedure to complete inflation. An air spring requires inspection for correct form after receiving an inflation in the hanging state. The lifting operator should elevate the vehicle into the air while placing the tire assemblies just above the ground level. Maintain the vehicle in neutral setting. Vent the air springs by using the scan tool before detaching the air spring from the rear axle by removing its retainer. The procedure to remove an air spring requires disconnecting the air spring solenoid electrical connector followed by compressing the quick connect locking ring to extract the air tube before finally removing the spring itself. Begin air spring assembly installation by setting the frame seat with the spring retainer clip followed by bottom air spring placement onto the rear axle. Complete underground installation by ensuring the white air tube reaches all the way into the fitting and then attach the air spring solenoid valve by uniting electrical connector and air tube junctions. Confirm that the air spring maintains its proper shape while also avoiding damages to the suspension by not letting it compress before air inflation begins. The technician should lower the vehicle down so wheel and tire assemblies just clear the ground level then use a scan tool to fill the air springs.
• Air Spring, Rear
  3U2Z-5580-PA
  Q: How to Service and Repair the Air Suspension System on Mercury Grand Marquis?

  A:

  Before starting air spring repair or servicing workers must verify that none of the air spring piston remains clamped. Locate the air spring on a flat floor and detach the air spring solenoid to allow the compressed air chamber to expand. Moving the membrane downward on top of the piston creates the desired height for the next step. The final step should be the installation of the air spring solenoid for height maintenance.