Dynasty L4-153 2.5L SOHC VIN K TBI (1992)
Evaporator Case: All Technical Service Bulletins
Air Conditioning Ducts - Emits Musty Odor
NO: 24-06-95 Rev. A
GROUP: Heater & A/C
DATE: May 26, 1995
SUBJECT:
Air Conditioning Ducts Emit Odor
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 24-06-95 DATED MAY 5, 1995 WHICH SHOULD BE REMOVED FROM
YOUR FILES. THE LABOR OPERATION NUMBERS HAVE BEEN CORRECTED. ALL REVISIONS ARE MARKED WITH **ASTERISKS**.
MODELS:
1994 - 1995
(AB) Ram Van/Wagon (Built On or After Aug. 1, 1993 - MDH 08-01-XX)
1992 - 1993
(AC) Dynasty/New Yorker Salon (Built On or After Jan. 31, 1992 - MDH 01-31 -XX)
1993 - 1995
(AN) Dakota
1992 - 1995
(AS) Caravan/Voyager/Town & Country
1992 - 1993
(AY) Imperial/New Yorker Fifth Avenue (Built On or After Jan. 31, 1992 - MDH 01-31-XX)
1994 - 1995
(BR) Ram Truck
1995
(JA) Cirrus/Stratus
1993 - 1995
(LH) Concord/Intrepid/LHS/New Yorker/Vision
1995
(PL) Neon
1993 - 1995
(ZJ) Grand Cherokee/Grand Wagoneer
SYMPTOM/CONDITION:
Some vehicles may emit a "musty" odor from the air conditioning ducts. The odor is most noticeable when the A/C system is first turned on. Two causes
for A/C related odors are possible, and are covered separately below:
CAUSE AND CORRECTION - VEHICLES IN SERVICE LESS THAN 12 MONTHS
On some vehicles with "plate fin" A/C evaporators, the manufacturing process occasionally results in an excessive amount of corrosion protection
coating being applied on the evaporator external surfaces. A heavy coating can result in an odor from the evaporator fins, especially when dry fins
become wet from condensation.
A new coating has been developed to correct this condition. The evaporator coil in the A/C unit must be replaced. Proceed to Repair Procedure A.
CAUSE AND CORRECTION - VEHICLES IN SERVICE FOR 12 MONTHS OR MORE
Offensive odors from air conditioners can sometimes occur in vehicles that have been in extended use resulting from possible accumulation of "foreign
matter" in the AC unit. This condition is more likely to occur in vehicles that have been in extended use in humid climates. To correct this condition, the
internal surfaces of the A/C air handling system will have to be cleaned. Proceed to Repair Procedure B.
PARTS AND EQUIPMENT REQUIRED:
REPAIR PROCEDURE A - VEHICLES IN SERVICE LESS THAN 12 MONTHS
AR
4798625
Coil, A/C Evaporator (AB 1994-1995, Vehicles Built On or After Aug. 1,1993)
AR
4677011
Coil, A/C Evaporator (AC/AY 1992-1993, Vehicles Built On or After Jan. 31,1992)
AR
4798624
Coil, A/C Evaporator (AN 1993-1995)
AR
4723069
Coil, A/C Evaporator (AS 1992)
AR
4734292
Coil, A/C Evaporator (AS 1993-1994)
AR
4797131
Coil, A/C Evaporator (AS 1995)
AR
4723518
Coil, A/C Evaporator (BR 1994)
AR
4798705
Coil, A/C Evaporator (BR 1995)
AR
4644790
Coil, A/C Evaporator (JA 1995)
AR
4797129
Coil, A/C Evaporator (LH 1993-1995)
AR
4797130
Coil, A/C Evaporator (PL 1995)
AR
4723518
Coil, A/C Evaporator (ZJ 1993-1994)
AR
4798705
Coil, A/C Evaporator (ZJ 1995)
REPAIR PROCEDURE B - VEHICLES IN SERVICE FOR 12 MONTHS OR MORE
1
4728942 A/C Evaporator Cleaner
1
4740319 Reusable Applicator
1
NPN
Pair of Rubber Gloves
1
NPN
Pair of Safety Glasses
REPAIR PROCEDURE A:
