AN/DN/DR/HB/JR/KJ/LH/ND/PL/PT/TJ/WG/WJ Vehicles Procedure
1. Open the hood.2. Disconnect and isolate the negative battery cable.
3. On AN/DN/HB/JR/LH/PT/WG/WJ - vehicles (other vehicles proceed to the next step), raise the vehicle on a suitable hoist.
4. On AN/DN/ND - vehicles (other vehicles proceed to the next step), remove the exhaust heat shield covering the cooling coil housing drain.
5. Inspect the cooling coil housing drain for leaves or other foreign material that may be blocking the drain.
6. On AN/DN/DR/HB/KJ vehicles (other vehicles proceed to next step), cap off the drain tube using a suitable cap. When the drain tube is capped off, proceed to Step # 9.
7. On ND vehicles (other vehicles proceed to next step), plug the cooling coil drain using a piece of plastic or a shop towel. When the drain tube is plugged, proceed to Step #9.
8. Clamp off the drain tube.
9. On AN/DN/HB/JR/LH/ND/PT/WG/WJ - vehicles (other vehicles proceed to the next step), lower the vehicle.
10. Remove passenger side floor mat.
11. Place a protective cover over the carpet and the passenger front seat.
12. If applicable, remove the silencer pad from under the instrument panel on the right side to gain access to the blower motor.
13. On LH vehicles (other vehicles proceed to next step), remove the lower right under panel duct and blower motor cover.
14. Disconnect the blower motor wire harness connector and remove the blower motor.
15. Inspect and remove any leaves and debris.
16. If necessary, use a shop vacuum to clean the cooling coil.
17. Open all the windows in the vehicle.
NOTE:
Technician must use eye protection, rubber gloves, and protective clothing.
NOTE:
No occupants should be in the vehicle during material application.
18. Screw the bottle of cooling coil cleaner (p/n 05170022AA) onto the applicator tool.
19. Connect the assembled applicator tool to the shop compressed air supply line.
20. Insert the applicator tool into the blower motor opening. Spray all of the cooling coil cleaner onto the cooling coil until the required number of bottles are empty (See table for required number of bottles).
21. Allow the vehicle to sit for a minimum of 30 minutes.
22. On AN/DN/HB/JR/LH/PT/WG/WJ - vehicles (other vehicles proceed to the next step), raise the vehicle.
CAUTION:
The excess cooling coil coating will drain when the cap/clamp/plug is removed in the next step.
23. Remove the drain tube clamp/cap/plug.
24. On AN/DN/HB/JR/LH/ND/PT/WG/WJ - vehicles (other vehicles proceed to the next step), lower the vehicle.
25. Fill each empty cleaner bottle with normal tap water.
26. One at a time, screw each bottle of normal tap water onto the applicator tool.
27. Spray all of the normal tap water onto the cooling coil until each bottle is empty.
28. Install the blower motor and connect the blower motor wire harness connector.
29. Connect the negative battery cable.
30. Start the engine.
31. Raise all the windows to a slightly open position (about 1/2 inch opening).
32. Set the blower to HIGH - A/C OFF.
33. Set mode switch to PANEL OUTLETS.
34. Set temperature switch to FULL HEAT.
35. Set recirculation switch to RECIRCULATE.
36. With the engine running, allow the blower to operate for 20 minutes.
37. Turn the ignition switch to the OFF position.
38. On AN/DN/HB/JR/LH/ND/PT/WG/WJ - vehicles (other vehicles proceed to the next step), raise the vehicle.
39. Install the drain tube clamp/cap/plug.
40. On AN/DN/HB/JR/LH/ND/PT/WG/WJ - vehicles (other vehicles proceed to the next step), lower the vehicle.
CAUTION:
Technician must use eye protection, rubber gloves, protective clothing, and avoid breathing vapors.
41. Open all the windows in the vehicle.
42. Disconnect and isolate the negative battery cable.
43. Disconnect the blower motor wire harness connector and remove the blower motor.
44. Shake an 8 ounce bottle of Cooling Coil Coating (p/n 04728942AB), and screw the bottle onto the applicator tool.
45. Insert the applicator tool into the blower motor opening. Spray the full contents of the bottle on the cooling coil being carefully to cover the entire surface of the cooling coil.
46. Allow the vehicle to sit for 30 minutes.
47. Install the blower motor and connect the blower motor wire harness connector.
48. Connect the negative battery cable.
49. On AN/DN/HB/JR/LH/ND/PT/WG/WJ - vehicles (other vehicles proceed to the next step), raise the vehicle.
CAUTION:
The excess cooling coil coating will drain when the cap/clamp/plug is removed in the next step.
50. Remove the drain tube clamp/cap.
51. On AN/DN/HB/JR/LH/PT/WG/WJ - vehicles (other vehicles proceed to the next step), lower the vehicle.
52. Start the engine.
53. Raise all the windows to a slightly open position (about 1/2 inch opening).
54. Set the blower to HIGH - A/C OFF.
55. Set mode switch to PANEL OUTLETS.
56. Set temperature switch to FULL HEAT.
57. Set recirculation switch to RECIRCULATE.
58. With the engine running, allow the blower to operate for 20 minutes.
59. Turn the ignition switch to the OFF position.
60. Fill the 4 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.
61. On AN/DN/HB/JR/LH/ND/PT/WG/WJ - vehicles (other vehicles proceed to the next step), raise the vehicle.
CAUTION:
In the following step be careful not to damage the A/C cooling coil.
62. 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.
63. On AN/DN/ND - vehicles (other vehicles proceed to the next step), install the exhaust heat shield covering the cooling coil housing drain.
64. On AN/DN/HB/JR/LH/ND/PT/WG/WJ - vehicles (other vehicles proceed to the next step), lower the vehicle.
65. On LH vehicles (other vehicles proceed to next step), install the blower motor cover and lower right under panel duct.
66. Remove the carpet and seat protector.
67. If applicable, install the silencer pad under the right side of the instrument panel.
68. Install floor mat.
69. Close the hood.