Daytona IROC V6-181 3.0L SOHC VIN 3 FI (1992)
Technical Service Bulletin # 091892A
Date: 930113
Engine - Smoky Exhaust/Oil Consumption
NO.: 09-18-92 Rev. A
GROUP: Engine
DATE: Jan. 13, 1993
SUBJECT:
Excessive Oil Consumption 3.0L MMC Engine
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 09-18-92 WHICH SHOULD BE REMOVED FROM YOUR FILES.
MODELS:
1989 - 1993
(AA)
Spirit/Acclaim/LeBaron Sedan
1989 - 1993
(AC)
Dynasty/New Yorker/New Yorker Salon/New Yorker Landau
1990 - 1993
(AG)
Daytona
1990 - 1993
(AJ)
LeBaron Coupe/Lebaron Convertible
1992 - 1993
(AP)
Shadow/Shadow Convertible/Sundance
1987 - 1993
(AS)
Caravan/Grand Caravan/Caravan CV
Voyager/Grand Voyager/Town & Country
1990 - 1991
(AQ)
Chrysler TC
1988
(C)
Dynasty/New Yorker
DISCUSSION:
Engines built since 11/15/91 (build code BDL7.067) have snap rings installed on the exhaust valve guides. Engines built since 10/2/92 (build code
BDL7.416) have improved intake and exhaust valve stem seals in addition to the snap rings on the exhaust valve guides. The build code label is located
on the intake plenum.
SYMPTOM/CONDITION:
Observed oil smoke in the exhaust at idle or during deceleration (conditions causing high intake manifold vacuum. Excessive oil consumption is more
than one quart per 1,000 miles on vehicles with less than 50,000 miles or more than one quart per 750 miles on vehicles with more than 50,000 miles.
DIAGNOSIS:
Verify the PCV system is functioning properly and engine compression is within specifications. Refer to the appropriate technical service manual for test
procedures and specifications. If the PCV system and engine compression are within specification, perform the repair procedure.
PARTS REQUIRED:
SPECIAL TOOLS REQUIRED:
REPAIR PROCEDURE:
This bulletin involves installing snap rings on the exhaust valve guides and replacing all of the valve stem seals or cylinder head replacement as
determined by inspection.