OEM Buick Rendezvous A/C Condenser

Buick Rendezvous A/C Condenser Parts and Q&A

• Condenser
  25813511
  Q: How to replace the A/C Condenser in the HVAC system on Buick Rendezvous?

  A:

  The replacement of the hvac system condenser begins with refrigerant retrieval from the a/c system followed by draining the cooling system. Both cooling fans and the cooling Fan Shroud should be removed. Using hose clamp pliers (J38185) you should reposition the Radiator outlet hose clamp located at the water pump housing before disconnecting the hose from the pump housing. Use hose clamp pliers (J38185) to move the Radiator outlet hose clamp at the Radiator before detaching the hose from the Radiator for removal. Disconnect the lower toc line from the Radiator while removing the a/c discharge hose nut from the condenser block but immediately cap and tape off exposed a/c refrigerant components to stop contamination. Cap or tape off the a/c discharge hose and unscrew the evaporator inlet tube bolt from the condenser block and disconnect the evaporator inlet tube from the condenser block before capping or taping off the evaporator inlet tube. Please detach the Radiator while removing the condenser assembly and then remove the condenser tube clip bolt and clip. Move the condenser mounting bolts first before taking the condenser away from the Radiator. Begin the condenser and receiver dehydrator repair sequence by removing the receiver dehydrator upper bracket bolt and lower mounting bolts and disconnecting the receiver dehydrator from the condenser. Discard the sealing washers during this step. When installing a new condenser you must first apply the recommended pag amount directly to the component before installing fresh sealing washers to the receiver dehydrator before attachment to the condenser. The receiver dehydrator lower mounting bolts require 6 n.m (53 lb in) torque followed by tightening the upper bracket bolt to 6 n.m (53 lb in). Screw the condenser to the Radiator using condenser mounting bolts at 6 n.m (53 lb in) torque. Fasten the condenser tube clip together with its bolt then apply 2.5 n.m (22 lb in) torque before installing the Radiator and condenser assembly. After removing the tape or cap from the evaporator inlet tube begin fitting a new washer to its tube connection point before tube installation onto the condenser block while tightening the bolt to 16 n.m (12 lb ft). Start by removing tape from the a/c discharge hose then fit a new sealing washer to its fitting. Reconnect the hose and nut to the condenser block while tightening the nut to 16 n.m (12 lb ft). After connection of the lower toc line to the Radiator install the Radiator outlet hose for attachment to the Radiator. The hose clamp pliers (J38185) allows technicians to readjust the Radiator outlet hose clamp on the Radiator before connecting the hose to the water pump housing while using the same tool for final hose attachment. Reinstall the cooling fans together with the cooling Fan Shroud before filling the cooling system and performing a/c system evacuation and recharging then conducting a leak test of component fittings with the halogen leak detector j39400-a.
• Condenser
  10339103
  Q: How to service and repair the A/C Condenser on Buick Rendezvous?

  A:

  In order to service and repair the hvac condenser, first recover the refrigerant from the a/c system and drain the cooling system. Take out the cooling fans and the cooling Fan Shroud and also reset the radiator outlet hose clamp to the water pump housing using the hose clamp pliers (J 38185) before removing the radiator outlet hose from the water pump housing and the radiator. Unplug the radiator outlet hose, remove the lower transaxle oil cooler line from the radiator, then the a/c discharge hose nut and hose itself, making sure to cap or tape off any exposed a/c refrigerant systems immediately. Next, unscrew the bolt of the evaporator inlet tube and detach the inlet tube capping or taping it also. Move on to the removal of the radiator and condenser assembly, next the condenser tube clip bolt and clip, then condenser mounting bolts to remove the condenser away from the radiator. Remove the receiver dehydrator upper and lower bracket bolts in order to disconnect it from the condenser discarding the sealing washers. On installation, when replacing condenser, add the prescribed volume of pag oil into it, then clean the sealing surfaces of the a/c refrigerant parts. Post and connect the receiver dehydrator to the condenser by tightening the lower and upper mounting bolts to 6 n.m (53 lb in). Install a new sealing washers. Secure the condenser to the radiator with the bolts for mounting tightened at 6 n.m (53 lb.in. ), followed by the condenser tube clip with its bolt tightened at thus: 2.5 n.m (22 lb.in.). Replace the radiator and condenser assembly, then release the caps or tape from the evaporator inlet tube and the a/c discharge hose, reinstalling new seal washers to both fitting. Jockey the evaporator inlet tube and bolt by placing it in a hole in the condenser block, tightening the bolt to 16 n.m (12 lb ft), and then jockey the a/c discharge hose and nut, with a connection of 16 n.m (12 lb ft). Reconnect the lower transaxle oil cooler line to the radiator and install the radiator outlet hose by using the hose clamp pliers (J 38185) both at the radiator and housing of the water pump. Finally, replace the cooling fans with the cooling Fan Shroud then fill the cooling system, evacuate and charging of the a/c system and carrying out the fittings leak test with the halogen leak detector (J 39400-A).