Roadmaster Estate Wagon V8-350 5.7L (1993)
Blower Motor: Customer Interest
A/C Blower - High Speeds Required for Sufficient Airflow
Bulletin: 93-1-6
Date: March '93
Ref. No.: 93-108-1
Corp. Ref. No.: 331203R
SUBJECT:
HIGH BLOWER SPEEDS REQUIRED FOR SUFFICIENT AIRFLOW (REMOVE HEATER SHUT OFF DOOR)
MODELS AFFECTED:
1993 ROADMASTER
APPLICATION:
1993 Roadmasters built within the VIN breakpoints listed below:
Arlington: 411630 through 412850
Willow Run: 401886 through 402200
CONDITION:
Higher than normal blower speeds will be experienced or selected by customers while in heater, defroster and air conditioning settings.
CAUSE:
The heater shut off door may have failed and fallen into the heater air stream restricting flow, requiring higher blower speeds in automatic and manual
systems.
CORRECTION:
The repair procedure is to remove the broken heater shut off door as follows, which will allow proper temperature and flow of air.