OEM Buick Lucerne Fan Shroud

Buick Lucerne Fan Shroud Parts and Q&A

• Fan Shroud
  21999691
  Q: How to replace the engine coolant fan shroud (LGD, LZ9) (3.9L) on Buick Lucerne?

  A:

  The maintenance of the engine coolant Fan Shroud (LGD, LZ9) (3.9L) requires that workers disconnect the battery negative cable as the first step. The removal procedure starts with draining the cooling system while simultaneously taking away the condenser as well as the upper tie bar. Support the car while you remove the front air deflector after which you should lift the vehicle. You should use hose clamp plier (J 38185) to shift the Radiator outlet hose clamp position before cutting the Radiator outlet hose loose. The vehicle descent becomes necessary after transmission oil cooler pipe retaining bolt removal from the Fan Shroud. Apply hose clamp plier (J 38185) to shift the Radiator inlet hose clamp for hose removal purposes. Accomplish access to the lines by sliding rearward the caps on transmission oil cooler lines and then extract those lines from their placement on the Radiator. First disconnect the wiring harness electrical connectors from cooling Fan Motors followed by unclipping the harness to Fan Shroud then removing all Fan Shroud mounting bolts. You should carefully remove the Fan Shroud assembly through a sequence of moving it left before pulling up on the right side then extracting it from the vehicle. Position the Fan Shroud assembly behind the Radiator while centering it correctly before tightening the Fan Shroud mounting bolts to 6 nm. After attaching the wiring connectors to cooling fan motors the Fan Shroud retaining clips must be installed onto the shroud. Insert the transmission oil cooler pipe into the Radiator quick connect until a "click" sound occurs before placing the plastic cap over the joint. Insert the Radiator inlet hose into position before securing it with hose clamp plier (J 38185). The vehicle should be lifted again for the installation of transmission oil cooler pipe retaining bolts to the Fan Shroud while tightening them to 6 nm (53 lb in). Next install the Radiator outlet hose before repositioning the Radiator outlet hose clamp with hose clamp plier (J 38185). The front air deflector needs to be reinstalled after lowering the vehicle which requires installation of the upper tie bar and condenser. Complete cooling system fluid installation while reattaching the battery negative terminal cable but also check the transmission fluid level.