OEM Buick Rainier A/C Hose

Buick Rainier A/C Hose Parts and Q&A

• A/C Hoses
  19432438
  Q: How to replace the A/C Hose for the evaporator tube on Buick Rainier?

  A:

  The replacement of the Evaporator tube should start with refrigerant recovery. Remove the Evaporator tube from both the Evaporator system as well as the auxiliary piping. The technician should remove the Evaporator tube nut from the condenser and proceed with loosening the nuts numbered (1, 2) that retain the Evaporator tube onto the fender. The washer solvent container along with the coolant recovery tank must be removed next. The orifice tube remover (J26549-E) helps remove the Evaporator tube while you should get rid of the included o-ring seal. The first step in installation consists of adding a new o-ring as well as fitting the Evaporator tube into place. You should attach the Evaporator tube to the Evaporator component and secure it with 28 n.m (21 lb ft) torque. Install the auxiliary Evaporator tube to auxiliary piping before tightening the nut to 28 n.m (21 lb ft). Then secure the Evaporator tube to the condenser and tighten the associated nut to 28 n.m (21 lb ft). After reinstalling the coolant recovery tank and the washer solvent container it is necessary to tighten the nuts (1, 2) holding the Evaporator tube to the fender to 28 n.m (21 lb ft). The technician must conduct a leak check on all components' fittings through the use of a halogen leak detector (J39400-A) post evacuation and recharging of the a/c system.
• Evaporator Tube
  15923988
  Q: How to service the rear A/C Hose using the A/C Line Repair Kit (J 41425) on Buick Rainier?

  A:

  The A/C Line Repair Kit (J 41425) enables service of rear heating or cooling system lines following detection of rub-through damages or impact-induced or leak-caused destruction. Keep the area measuring the correct minimum length as the straight part of the rear A/C and heater lines during the sectioning procedure on both sides of the splice. Once performing repairs on straight lines the procedure calls for refrigerant recovery during A/C work and coolant drainage for heater line work. Begin by raising the vehicle and identify the damaged area then acquire the replacement line. A tubing cutter should be used to trim away the damaged section before preparing the new section to match the original length. Use the cleaning pad from the A/C Line Repair Kit (J 41425) to eliminate deburring grease from the line ends while cleaning at least 19 mm (0.75 in) beyond the splice area. The line ends receive treatment with LOK prep sealant before receiving a single drop of sealing compound (J 41425-3) and then inserting line ends into LOK fittings. Use the LOK connector tool with the appropriate jaws to place the tool over LOK connectors installed inside the counter bores. Following this place the forcing screw into the tool while using a 3/8" breaker bar to bottom out the LOK fitting on its center shoulder. Resist tightening the tool forcing screw through its 3/8" breaker bar combination until the connector collars fully reach the center shoulder of the LOK fitting. After using the forcing tool to tighten the screw you should remove it while checking the LOK fittings for proper installation. The vehicle should be lowered while the technician completes coolant replenishment when draining occurred and handles A/C refrigerant charging for post-repair lines. When sectioning repair lines follow the same procedure while spacing the spliced segments when working on multiple lines and maintain uniform length for the replacement line section.