Crazy Devoted Member
Member Number: 125
Join Date: Nov 2002
Location: Ashkum, Illinois
Rep Power: 55
Here is a TSB
on the musty smell.
AIR CONDITIONINGâ€”MUSTY AND MILDEW TYPE Article No.
ODORSâ€”SERVICE PROCEDURE 99-19-5
FORD: 1994-1998 MUSTANG
1995-1998 CONTOUR, CROWN VICTORIA, ESCORT
LINCOLN: 1995-1998 CONTINENTAL, MARK VIII, TOWN CAR
MERCURY: 1995-1998 GRAND MARQUIS, MYSTIQUE, TRACER
This TSB article is being republished in its entirety WARNING
to add models. AVOID FLAMES, SPARKS OR LIT TOBACCO
PRODUCTS. THIS PRODUCT IS COMBUSTIBLE.
Musty and mildew type odors may come from the WARNING
air conditioning/heating system. These odors may
be caused by mildew-type fungi growth in the A/C READ ALL INSTRUCTIONS AND WARNINGS
evaporator. It is most noticeable when the A/C is PACKAGED WITH THE DISODORIZER.
first turned on.
A new Disodorizer which encapsulates the mildew A/C ODOR TREATMENT PROCEDURE
is now available to help reduce these odors. A new
Moisture Purge Module (MPM) which operates the
blower motor when the vehicle is parked to dry out NOTE
the evaporator core is now available for these THIS PROCEDURE WILL NOT BE EFFECTIVE
vehicles. Apply the Air Conditioning System ON ODORS EMITTED FROM AREAS OTHER
Disodorizer (F6AZ-19G210-AA or YN-18, or THAN THE EVAPORATOR CORE. FOR
equivalent meeting Ford specification EXAMPLE: MILDEW ODORS DUE TO WET
WSS-M99B187-A) product to the A/C system, install CARPET WHICH ARE CIRCULATED BY THE A/C
the MPM as directed in the following Service SYSTEM. BE SURE YOU HAVE IDENTIFIED THE
Procedure, and review the Odor Service Tips. TYPE AND SOURCE OF ODOR BEFORE
PERFORMING THIS REPAIR.
WARNING The A/C System Disodorizer (F6AZ-19G210-AA or
AVOID CONTACT WITH EYES AND SKIN. YN-18) is a full strength disodorizer which requires
CONTACT WITH EYES AND SKIN WILL CAUSE no dilution or mixing. Each vehicle treated will
IRRITATION. WEAR SAFETY GLASSES WHEN require 240 mL (8 fluid ounces) to complete the
USING THE DISODORIZER. procedure.
THIS PROCEDURE SHOULD ONLY BE THE ROTUNDA A/C DISODORIZER SPRAYER
PERFORMED IN WELL VENTILATED AREAS. 164-R4700 IS ONLY TO BE USED WITH THE
OPEN ALL WINDOWS AND DOORS OF THE YN-18 A/C SYSTEM DISODORIZER AND
VEHICLE. LEAVE DOORS AND WINDOWS OPEN SHOULD NOT BE USED FOR ANY OTHER
DURING THE ENTIRE PROCEDURE. AVOID PURPOSE.
PROOF 6-MAR-00 80-0065 80-0065 PAGE 1
Article No. 99-19-5 Contâ€™d.
The A/C System Disodorizer can be applied using CAUTION
the Rotunda A/C Disodorizer Sprayer 164-R4700. BLOWER MOTOR RESISTOR MAY BE VERY
The disodorizer must be applied through the blower HOT.
motor or the blower motor resistor/controller opening
for proper coverage. Refer to the following 6. Remove and disconnect blower motor or
Disodorizer Application Location Chart to resistor/controller (refer to Disodorizer
determine which component to remove. Application Location Chart) by referring to the
appropriate Service Manual, Section 12 or
Workshop Manual, Section 412-02. DISODORIZER APPLICATION LOCATION
Model Blower Blower Motor 7. Insert the A/C Disodorizer Sprayer (Rotunda
Year Vehicle Motor Resistor/Controller 164-R4700) nozzle into the blower motor
1995-98 Escort/Tracer X resistor/controller opening in the evaporator
1996-98 Taurus/Sable X case and direct toward the face of the
1995-98 Windstar X evaporator core. Spray the Disodorizer until
1995-98 Town Car X empty.
1994-98 Mustang X
1995-98 Contour/Mystique X 8. Wait 10 minutes before proceeding.
1997-98 Expedition X
1998 Navigator X 9. Reinstall and reconnect blower motor or
1995-98 Villager X resistor/controller. 1995-98 Crown Victoria/Grand X
Marquis 10. Repeat Steps 1-5. 1995-98 Continental X
1995-98 Mark VIII X 11. Reconnect A/C cycling switch.
12. Allow vehicle to sit for 30 minutes before
NOTE returning to customer.
SPRAYER MUST BE CHARGED COMPLETELY
FOR PROPER ATOMIZATION OF THE NOTE
DISODORIZER. FAILURE TO PROPERLY REFER TO APPROPRIATE SERVICE LABOR
APPLY THE DISODORIZER AS OUTLINED IN TIME STANDARDS MANUAL FOR BLOWER
THIS TSB ARTICLE WILL NOT ALLOW ALL OF MOTOR REMOVAL AND INSTALLATION OR
THE MICROBIAL GROWTH TO BE CONTAINED RESISTOR REMOVAL AND INSTALLATION.
AND WILL RESULT IN AN INCOMPLETE
REPAIR. MOISTURE PURGE MODULE (MPM)
1. Open vehicle windows. INSTALLATION
2. Disconnect A/C cycling switch electrical 1. Install the applicable MPM and wiring harness.
connector. Follow the procedure in the Instruction Sheet
provided with the wiring harness.
3. Set the following:
2. Verify MPM operation.
â€¢ A/C in vent or panel mode
â€¢ Temperature at full heat ODOR SERVICE TIPS
â€¢ Blower at high speed
â€¢ Engine running at normal operating Types Of Odors, Their Sources And Treatments
temperature There are typically four (4) types of objectionable
â€¢ Vehicles equipped with a manually operated odors found in a vehicle, they are:
fresh air/recirculate air door, set the door to â€¢ Chemical odors
fresh air position â€¢ Environmental odors
4. Run vehicle (Steps 1-3 conditions) for 15 â€¢ Microbiological odors
minutes. This will dry out the system. â€¢ Human and other interior-generated odors
5. Turn ignition off.
PAGE 2 80-0065 80-0065 PROOF 6-MAR-00
Article No. 99-19-5 Contâ€™d.
Odors can be described in a number of ways:
Human and other interior-generated odors:
â€¢ Secretion From The Human Body: body odors
â€¢ Perfuming Agents: sweet or fragrance smell
â€¢ Dirty Clothes, Shoes, Socks: musty, mildew, body
â€¢ Sweet odors
â€¢ Burning â€¢ Food/Beverage: sweet, musty, mildew, fishy smell
â€¢ Fuel The first step in diagnosing an odor concern is to
verify the concern. To verify an odor you must
â€¢ Oil determine when and under what circumstances the
â€¢ Exhaust odor occurs and what type of odor it is.
â€¢ Wet cement
Chemical odors are usually constant regardless of
â€¢ Urine A/C setting and can be enhanced by A/C system
â€¢ Tar operation. Most chemical odors are caused by fluid
â€¢ Fragrance leaks and some are caused by improperly cured
carpet and trim adhesives or evaporator core â€¢ Body odor
Environmental odors usually occur for a short time
â€¢ Coolant: sweet smell and go away after the vehicle has passed through
â€¢ Fuel: gasoline or diesel fuel smell the affected area. These odors are usually only
â€¢ Oil: oil type or burning smell detected when a window is open or the A/C system
is operating in a function that allows outside air to â€¢ Power Steering Fluid: oil type or burning smell
enter the vehicle.
â€¢ Transmission Fluid: oil type or burning smell
â€¢ Washer Fluid: alcohol type smell Microbiological odors, if in the A/C system, usually
last for about 30 seconds when first turned on and
â€¢ Gear Lube: garlic/sulfur smell will be detected in both Max and Normal A/C.
â€¢ Refrigerant/Oil: ether type smell Microbiological odors occurring elsewhere such as
â€¢ Carpet/Trim Adhesives: fishy, urine, or sweet from standing water in doors or kick panels or wet
smell carpeting may last indefinitely and will be more
â€¢ Evaporator Core Coating: wet cement type smell intense in Max A/C. Microbiological odors will not
occur at temperatures below 10Â°C (50Â°F).
Human and other interior-generated odors occur
â€¢ Exhaust: exhaust, fuel, burning type smell while the source is present and may linger for a
â€¢ Industrial Pollutants: all types of smells short time after removal. These odors can be more
â€¢ Dust: musty, mildew, wet cement type smell noticeable during operation of the A/C system. They
â€¢ Pollen: sweet smell can be detected in the outside air position and may
be more noticeable in Recirc.
â€¢ Tobacco: burning, tar smell
The first step in getting rid of odors is to find the
Microbiological odors: source of the odor. Once the source is found, it
Microbial growth supported by warm temperatures must be removed and the affected area cleaned or
and moisture may occur on: treated .
â€¢ Foam Seals: musty, mildew smell Chemical odors can be removed by repairing or
â€¢ Rubber Seals: musty, mildew smell replacing the component that causes the odor and
â€¢ Adhesives: musty, mildew smell then cleaning any residue that may have
accumulated from the component failure.
â€¢ Standing Water: musty, mildew smell
â€¢ Water Soaked Carpet/Trim: musty, mildew smell
PROOF 6-MAR-00 80-0065 80-0065 PAGE 3
Article No. 99-19-5 Contâ€™d.
Environmental odors usually cannot be removed OPERATION DESCRIPTION TIME
due to the fact that they occur from external 991905A Disodorize And Install 1.9 Hrs.
sources and are an everyday occurrence. They can, Moisture Purge Module
however, be minimalized by switching to Max A/C (MPM) - Town Car
or Recirc mode. 991905B Disodorize And Install 2.3 Hrs.
Moisture Purge Module
Microbiological odors can be eliminated by removing (MPM) - Mustang
the source and then treating the affected area. 991905C Disodorize And Install 1.4 Hrs.
Standing water must be allowed to drain and dry Moisture Purge Module
out. A/C systems may be disodorized by using Air (MPM) - Windstar
Conditioning System Disodorizer 991905D Disodorize And Install 1.5 Hrs.
(F6AZ-19G210-AA or YN-18, or equivalent meeting Moisture Purge Module
Ford specification WSS-M99B187-A) as described in (MPM) - Contour/Mystique
the Service Procedure in this article. 991905E Disodorize And Install 1.9 Hrs.
Human and other interior-generated odors can be Moisture Purge Module
eliminated by removing the source and cleaning the (MPM) - Escort/Tracer
affected area. 991905F Disodorize And Install 2.0 Hrs.
Moisture Purge Module
PART NUMBER PART NAME Expedition/Navigator
F6AZ-19G210-AA Air Conditioning System Disodorizer 991905G Disodorize And Install 1.6 Hrs.
(YN-18) Moisture Purge Module
F78Z-14K095-BA Moisture Purge Module Wire Harness (MPM) - Taurus/Sable
Kit (Mustang, Windstar, 991905H Disodorize And Install 1.9 Hrs.
Expedition/Navigator, Moisture Purge Module Contour/Mystique, Taurus/Sable,
Escort/Tracer, Villager, Continental) (MPM) - Villager
F7VZ-14K095-BA Moisture Purge Module Wire Harness 991905I Disodorize And Install 1.9 Hrs.
Kit (Town Car, Mark VIII, Crown Moisture Purge Module
Victoria/Grand Marquis) (MPM) - Crown
F8XZ-19980-AA Moisture Purge Module (MPM) Victoria/Grand Marquis
991905J Disodorize And Install 1.8 Hrs.
NOTE Moisture Purge Module
REFER TO APPROPRIATE SERVICE LABOR (MPM) - Mark VIII
TIME STANDARDS MANUAL FOR BLOWER 991905K Disodorize And Install 2.1 Hrs.
MOTOR REMOVAL AND INSTALLATION OR Moisture Purge Module
RESISTOR REMOVAL AND INSTALLATION. (MPM) - Continental
OTHER APPLICABLE ARTICLES: NONE CONDITION
SUPERSEDES: 98-10-2 BASIC PART NO. CODE
WARRANTY STATUS: Eligible Under The ODOR 49
Provisions Of Bumper To OASIS CODES: 208000, 208300, 208999, 290000
Bumper Warranty Coverage
PAGE 4 80-0065 80-0065 PROOF 6-MAR-00
'10 Red Genesis Coupe
'08 Hyundai Accent