Engine - Miss With 2 Dead Cylinders
Bulletin 85-6-26Date Nov.. '85
Ref. No. 85-310-6
SUBJECT: ENGINE MISS
MODELS AFFECTED: 1985 LESABRES & RIVIERAS EQUIPPED WITH 5.0L V-8 ENGINES (VIN CODE Y)
An engine miss involving two "dead" cylinders, one on each side, may be caused by a push rod hole in the cylinder head breaking through into an intake port. If this condition exists, remove the intake manifold and examine the intake passage in each cylinder head. If the push rod hole in the cylinder head has broken through into the intake passage, cylinder head replacement will be necessary.