VA Vehicle Procedure

1. Raise the vehicle on a suitable hoist.

2. Inspect the cooling coil housing drain for leaves or other foreign material that may be blocking the drain.

3. Clamp off the drain tube using a suitable clamp.

4. Lower the vehicle.

5. Remove the HVAC filter cover and HVAC filter. Refer to the detailed service information available in TechCONNECT, under: Service Info, 24 - Heating & Air Conditioning, Distribution, Air Filter.

6. Inspect and remove any leaves and debris.

7. If necessary, use a shop vacuum to clean the cooling coil.

8. Open all the windows in the vehicle.

CAUTION:
Technician must use eye protection, rubber gloves, protective clothing, and avoid breathing vapors.

9. Screw the bottle of cooling coil cleaner (pin 05170022AA) onto the applicator tool.

10. Connect the assembled applicator tool to the shop compressed air supply line.

11. Insert the applicator tool into the HVAC filter opening.

12. Spray all of the cooling coil cleaner onto the cooling coil continuously while moving the applicator tool up and down and back and forth so that the evaporator is evenly covered until the required number of bottles are empty (See table for required number of bottles).

13. Allow the vehicle sit for a minimum of 30 minutes.

14. Raise the vehicle on a suitable hoist.

CAUTION:
The excess cooling coil coating will drain when the cap/clamp/plug is removed in the next step.

15. Remove the clamp from the drain tube.

16. Lower the vehicle.

17. Fill each empty cleaner bottle with normal tap water.

18. One at a time, screw each bottle of water onto the applicator tool.

19. Insert the applicator tool into the HVAC filter opening.

20. Spray the full contents of the water onto the evaporator continuously while moving the applicator tool up and down and back and forth so that the evaporator is evenly covered with water.

21. Install the HVAC filter cover (do not install the HVAC filter at this time).

22. Start the engine.

23. Raise all the windows to a slightly open position (about 1/2 inch opening).

24. Set the blower to HIGH.

25. Set the A/C switch to NC OFF.

26. Set mode switch to PANEL OUTLETS.

27. Set temperature switch to FULL HEAT.

28. Set recirculation switch to RECIRCULATE.

29. With the engine running, allow the blower to operate for 20 minutes.

30. Turn the ignition switch to the OFF position.

31. Raise the vehicle on a suitable hoist.

32. Clamp off the drain tube using a suitable clamp.

33. Lower the vehicle.

CAUTION:
Technician must use eye protection, rubber gloves, protective clothing, and avoid breathing vapors.

34. Open all windows in the vehicle.

35. Remove the HVAC filter cover.

36. Shake a 8 ounce bottle of Cooling Coil Coating (p/n 04728942AB), and screw the bottle onto the applicator tool.

37. Insert the applicator tool into the blower resistor opening. Spray the full contents of the bottle onto the evaporator while moving the applicator tool up and down and back and forth so that the evaporator is evenly coated.

38. Allow the vehicle to sit for 30 minutes.

39. Install the HVAC filter. Replace with a new filter, p/n 05103600AA, if necessary.

40. Install the HVAC filter cover.

41. Raise the vehicle on a suitable hoist.

CAUTION:
The excess cooling coil coating will drain when the cap/clamp/plug is removed in the next step.

42. Remove the drain tube clamp.

43. Lower the vehicle.

44. Start the engine.

45. Raise all the windows to a slightly open position (about 1/2 inch opening).

46. Set the blower to HIGH.

47. Set the A/C switch to A/C OFF.

48. Set mode switch to PANEL OUTLETS.

49. Set temperature switch to FULL HEAT.

50. Set recirculation switch to RECIRCULATE.

51. With the engine running, allow the blower motor to operate for 20 minutes.

52. Turn the ignition switch to the OFF position.

53. Fill an 8 ounce plastic bottle with warm water and screw onto applicator tool. Clean tool by spraying warm water under pressure into the shop sink. Wipe the tool and store for next use.

54. Raise the vehicle on a suitable hoist.

CAUTION:
In the following step be careful not to damage the A/C cooling coil.

55. Using a suitable object (a wire coat hanger for example), probe the drain tube 3.8 - 5.1 cm (1.5 - 2 in.) to ensure that the dried coil coating is not restricting the flow from the drain tube.

56. Lower the vehicle.