I had the a/c drain clog over the summer and now I notice a nice musty smell at start up

is this the mopar product I want?
COATING-COOLINGCOIL Part Number 4897625AB

and how is it used for my 06, spray down the vents?

thanks

 

SUBJECT:

A/C Cooling Coil Odor

OVERVIEW:

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

MODELS:

1995 - 2003 (AB) Ram Van/Wagon
1995 - 2004 (AN) Dakota
2004 - **2007** (CS) Pacifica
1998 - 2003 (DN) Durango
2002 - **2007** (DR/DH/D1) Ram Pickup
2004 - **2007** (HB) Durango
2001 - 2006 (JR) Sebring Convertible/Sebring Sedan/Stratus Sedan
2002 - **2007** (KJ) Liberty
1993 - 2004 (LH) 300M/Concorde/LHS/New Yorker/Intrepid/Vision
2005 - **2007** (LX) 300/**Charger**/Magnum
2005 - **2007** (ND) Dakota
2002 (PG) PT Cruiser (International Markets)
1995 - 2005 (PL) Neon/SX 2.0
2001 - **2007** (PT) Chrysler PT Cruiser
2001 - **2007** (RG) Chrysler Voyager (International Markets)
2001 - **2007** (RS) Town & Country/Caravan/Voyager
2001 - 2005 (ST) Sebring Coupe/Stratus Coupe
1997 - 2006 (TJ) Wrangler

NUMBER:

GROUP:

DATE:

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**/XH**

EQUIPMENT REQUIRED:

AI-62637 **or
534-62637**
Applicator Tool, teamPSE
Pliers, Hose Clamp
Fabricated Cap 15.9 mm (0.625 in.)
Fabricated Cap 19 mm (0.75 in.)
24-006-06 -2-

AB/CS/LX/RS/WK/XK VEHICLE PROCEDURE:

1. Open the hood.
2. On LX/RS/**2005 WK/ WH (2006 - 2007 WH/WK/XH/XK vehicles skip to step 8)
(AB/CS** vehicles proceed to next step), raise the vehicle on a suitable hoist.
3. Inspect the cooling coil housing drain for leaves or other foreign material that may be
blocking the drain.

Fig. 1 FABRICATED PLUG FOR **2005 WK/WH** VEHICLES

1 - 152.4 MM (6 in.) OF 15.9 MM (5/8 in.) I.D. HEATER HOSE, p/n HHR00058AA
2 - DEEP 12 MM, 9.8 MM (3/8 in.) DRIVE SOCKET
2 - 457.2 MM (18 in.) LONG, 9.8 MM (3/8 in.) DRIVE SOCKET EXTENSION

Fig. 2 FABRICATED PLUG IN PLACE IN **2005 WK/WH** VEHICLES

1 - RIGHT SIDE SUB-FRAME 3 - FABRICATED PLUG IN PLACE
2 - EXHAUST 4 - FORWARD HOIST ARM

-3- 24-006-06
4. On **2005 WK/WH** vehicles (other vehicles proceed to next step), fabricate the
cooling coil drain plug as follows (

Step #18

14. If the vehicle is not equipped with an A/C air filter, proceed to next step. If equipped
with an A/C air filter, remove the A/C air filter. Refer to the detailed service information
available in TechCONNECT, under: Service Info, 24 - Heating & Air Conditioning,
Distribution, Air Filter.
15. Inspect and remove any leaves and debris.
16. If necessary, use a shop vacuum to clean the cooling coil.
17. If not equipped with an A/C air filter, proceed to next step. If equipped with an A/C air
filter, install the air filter door (do not install the air filter at this time).
18. Open all the windows in the vehicle.

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

19. Screw the bottle of cooling coil cleaner (p/n 05170022AA) onto the applicator tool.
20. Connect the assembled applicator tool to the shop compressed air supply line.
21. Insert the applicator tool into the blower resistor/power module opening.
22. 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).
23. Allow the vehicle sit for a minimum of 30 minutes.
24-006-06 -4-
24. On LX/RS/**2005 WH/WK vehicles, raise the vehicle on a suitable hoist. On 2006 -
2007 WH/WK/XH/XK skip to step 27. Other vehicles proceed to next step.**

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

25. Remove the cap/clamp from the drain tube.
26. On LX/RS/**2005 WH/WK** vehicles (other vehicles proceed to next step), lower the
vehicle.
27. Fill each empty cleaner bottle with normal tap water.
28. One at a time, screw each bottle of water onto the applicator tool.
29. Insert the applicator tool into the blower resistor opening.
30. 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.
31. Install the blower motor resistor/power module.
32. Start the engine.
33. Raise all the windows to a slightly open position (about 1/2 inch opening).
34. Set the blower to HIGH.
35. Set the A/C switch to A/C OFF.
36. Set mode switch to PANEL OUTLETS.
37. Set temperature switch to FULL HEAT.
38. Set recirculation switch to RECIRCULATE.
39. Allow the blower to operate for 20 minutes.
40. Turn the ignition switch to the OFF position.
41. On LX/RS/**2005 WH/WK vehicles, raise the vehicle on a suitable hoist. On 2006 -
2007 WH/WK/XH/XK skip to step 44. Other vehicles proceed to next step.**
42. Cap/clamp off the drain tube using a suitable cap.
43. On LX/RS/**2005 WH/WK/** vehicles (other vehicles proceed to next step), lower the
vehicle.

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

44. Open all windows in the vehicle.
45. Remove the blower motor resistor/power module.
46. Shake a 8 ounce bottle of Cooling Coil Coating (p/n 04728942AB), and screw the
bottle onto the applicator tool.
47. 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.
48. Allow the vehicle to sit for 30 minutes.
49. Install the blower motor resistor/power module.
50. On LX/RS/**2005 WH/WK vehicles, raise the vehicle on a suitable hoist. On 2006 -
2007 WH/WK/XH/XK skip to step 53. Other vehicles proceed to next step.**

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

51. Remove the drain tube cap/clamp.
52. On LX/RS/**2005 WH/WK** vehicles (other vehicles proceed to next step), lower the
vehicle.
53. Start the engine.
-5- 24-006-06
54. Raise all the windows to a slightly open position (about 1/2 inch opening).
55. Set the blower to HIGH.
56. Set the A/C switch to A/C OFF.
57. Set mode switch to PANEL OUTLETS.
58. Set temperature switch to FULL HEAT.
59. Set recirculation switch to RECIRCULATE.
60. Allow the engine to run for 20 minutes.
61. Turn the ignition switch to the OFF position.
62. 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.
63. On LX/RS/**2005 WH/WK vehicles, raise the vehicle on a suitable hoist. On 2006 -
2007 WH/WK/XH/XK skip to step 67. Other vehicles proceed to next step.**

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

64. 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.
65. AB vehicles proceed to

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

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.
-7- 24-006-06
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

 

The applicator tool looks kinda like an air brush with a long wand on it. The bottle screws onto the tool and a hose goes down into the bottle. Air is connected and blown across the top of the hose sucking the cleaner or sealer up. Make sure you preheat and dry it well, especially dry.

 

As for smell from front vents, I raped them into all holes using everything from soapy water (with help of garden spray bottle) to Lysol spray. Just don't forget to remove filter. I sprayed intakes under the hood with AC and heater running, I sprayed right into working fan through the place where filter is inserted, I even poured some soapy water into vents using long silicone tube. Between all these exercises I drove up and down in my underground garage. I saw coming out a lot of dirty water under my Caravan. Smell from main vents was gone (and all is good after several months). But next day I got "airbag not working" light. Managed to find the reason on Internet - all this wet fun is not good for big yellow connector located behind vertical plastic part with two 12v outlets near the floor. Removed several plastic screws, shifted plastic console, agitated yellow connector and airbag light was gone. Did not put all this plastic screws back, they are not necessary

So, front vents were OK for several months but rear vents started to smell. Watched wonderful Youtube video on how to replace rear evaporator and did not like the idea of such great disassembly. Besides, it is impossible without lifting the car. Bought portable fan OPOLAR Portable Operated Two 2200mAh Batteries, Personal Handheld Fan with Folding Design on Amazon and Walmart Disinfectant Spray. Round plastic rear roof vents are easily removed by rotating them (don't remember direction, sorry, try both). Removed one vent (rear left, closest to evaporator I guess), put pencil-sized stick across the hole and attached folded fan with help of two rubber bands. Then removed fan, sprayed Walmart Disinfectant and put back the fan which runs many hours on one charge. Repeated process next day and then one more time. So far so good, no smell for several weeks and if it returns then spraying and attaching this small battery fan is easy. Besides I really like this small fan Also, I played with all possible AC/heater controls to make sure that disinfectant gets everywhere inside car. The only problem that my eyes became a bit irritated, perhaps using scuba diving equipment could be a good idea

Also, I am pretty sure that leaving windows a bit cracked is helpful, so I bought rain guards WeatherTech 80476 - Dark Smoke Front Side Window Deflector, WeatherTech-80476, 1, $98.95. Also, at the end of any trip with A/C I switch to heater for at least 2 minutes, just to dry inside a bit. I am not sure that really helps, could be good to hear opinion of others.

 

You sir, are not to be F'ed with! :-)