OEM Buick Lucerne Radiator

Buick Lucerne Radiator Parts and Q&A

• Radiator
  25769584
  Q: How to replace the radiator in engines with codes LGD or LZ9 (3.9L) on Buick Lucerne?

  A:

  Vehicle owners must drain part of their cooling system before changing the Radiator for engine models lgd and lz9 (3.9L). Start by removing the cooling Fan Shroud assembly then proceed to take off the condenser line to Radiator retaining bolt . You can utilize j 38185 - hose clamp pliers to shift the hose clamp along the outlet hose of the Radiator before you extract both outlet and inlet hoses respectively. You should also apply this step to the Radiator inlet hose. First disconnect the upper Radiator bracket bolts and upper Radiator brackets before carefully detaching both the condenser and Radiator from their lower attachment points when removing condenser mounting bolts . Trap the condenser above the Radiator base to let the lower supports free themselves from mounting points. Finally use a lifting motion to pull out the Radiator from its place. When installing the new Radiator you need to position it inside the vehicle while letting the condenser's lower feet accommodate the mounting features on the Radiator. Use only the specific condenser bolts because they match the Radiator end tanks length and tighten them to 13 nm (115 lb in). Use the hose clamp pliers model j 38185 to reconnect both the Radiator outlet hose and reposition the clamp. Perform the same procedure for the Radiator inlet hose. Fasten the upper Radiator brackets by using bolts which should be tightened at 25 nm (18 lb ft). Secure the condenser line to Radiator retaining bolt with force at 6 nm while installing the cooling fans. As the final step you need to perform the cooling system fill according to specifications.