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TSB 24-013-05

A/C Cooling Coil Odor

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Geno's Garage Truck Accessories

Date: August 4, 2005   

Models: 2002 - 2006 (DR/DH/D1) Ram Pickup

1995 - 2003 (AB) Ram Van/Wagon
1995 - 2004 (AN) Dakota
2004 - 2006 (CS) Pacifica
1998 - 2003 (DN) Durango
2002 - 2006 (DR/DH/D1) Ram Pickup
2004 - 2006 (HB) Durango
2001 - 2006 (JR) Sebring Convertible/Sebring Sedan/Stratus Sedan
2002 - 2006 (KJ) Liberty
1993 - 2004 (LH) 300M/Concorde/LHS/New Yorker/Intrepid/Vision
2005 - 2006 (LX) 300/Magnum
2005 - 2006 (ND) Dakota
2002            (PG) PT Cruiser (International Markets)
1995 - 2005 (PL) Neon/SX 2.0
2001 - 2006 (PT) PT Cruiser
2001 - 2006 (RG) Chrysler Voyager (International Markets)
2001 - 2006 (RS) Town & Country/Caravan/Voyager
2001 - 2005 (ST) Sebring Coupe/Stratus Coupe
1997 - 2006 (TJ) Wrangler
2002 - 2006 (VA) Sprinter
1999 - 2004 (WJ/WG) Grand Cherokee
2005 - 2006 (WK/WH) Grand Cherokee
2006             (XK) Commander

Overview:
This bulletin involves inspecting for leaves and other foreign material, cleaning, and treating the
cooling coil and housing.

Symptom/Condition:
Some vehicle operators may experience a musty odor from the A/C system, primarily at start
up in hot and humid climates. This odor may be the result of microbial growth on the cooling
coil. During normal A/C system operation, condensation forms in and around the A/C cooling
coil. When airborne pollutants mix with this condensation, bacteria and fungi growth begins and
odor results.

Diagnosis:
If the operator describes, or the technician experiences a musty odor when operating the A/C
system, perform the appropriate Repair Procedure based on the vehicle model.

Parts Required:
Qty. Part No. Description
AR (3) 05170022AA Cleaner, A/C Cooling Coil, 8 oz. Bottle
Refer To Table For Quantity Required
1 04728942AB Coating, A/C Cooling Coil, 8 oz. Bottle
AR (1) 82205905 Filter, Cabin Air  (CS/RS vehicles)
AR (1) 04596501AB Filter, Pollen  (LX vehicles w/sales code ADB)
AR (1) 05103600AA Filter, A/C and Heater Unit  (VA vehicles)
 
A/C COOLING COIL CLEANER REQUIREMENTS BY VEHICLE MODEL
Number of Bottles Required Models
2 JR, KJ, PG, PL, PT, ST, TJ, ZB
3 AB, AN, CS, DN, DR/DH/D1, HB, LH, LX, ND, RG, RS, VA,
WG, WJ, WK/WH, XK

Equipment Required:

AI-62637    Applicator Tool, teamPSE
  Pliers, Hose Clamp
  Fabricated Cap 15.9 mm (0.625 in.)
  Fabricated Cap 19 mm (0.75 in.)

Repair Procedure: 

AN/DN/DR/HB/JR/KJ/LH/ND/PL/PT/TJ/WG/WJ VEHICLES PROCEDURE:
For other vehicles, see you dealer to obtain a copy of this bulletin.

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.

Policy:    Reimbursable within the provisions of the warranty.

Time Allowance:

Labor Operation No:   Description Amount
24–65–02–98 TJ 0.6 Hrs.
  AB,CS,DR,DH,D1,KJ,PL 0.7 Hrs.
  ST, VA 0.8 Hrs.
  JR, LX, PG, PT, RG, RS, WJ, WG, WK, WH, XK 0.9 Hrs.
  HB 1.0 Hrs.
  AN, DN, LH, ND 1.1 Hrs.
FAILURE CODE:

Failure Code:

YP       Odor

I would like to thank Bob Bergevin, Arthur Cantrall, Barry Drodge, David Lovell, Bill Maurits, and Steve for supplying the information for these bulletins. And a big thank you goes to Geno's Garage for making DodgeRam.info possible.

 

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This page was edited on: May 3, 2004