Roadmaster Estate Wagon V8-305 5.0L (1991)
PROM - Programmable Read Only Memory: Customer Interest
Engine - Poor Low Speed Driveability/Spark Knock
Bulletin: 91-6E-17A
Date: Nov. '92
Ref.No.: 91-307-6E
Corp.Ref.No.: 276110
SUBJECT:
DRIVEABILITY IMPROVEMENTS (REPLACE ESC AND/OR PROM)
MODELS AFFECTED:
1991 ROADMASTER
THIS BULLETIN CANCELS AND SUPERSEDES SERVICE BULLETINS 91-6E-17 AND 92-6E-12. ALL COPIES OF 91-6E-17 AND 92-6E-12
SHOULD BE DISCARDED. THIS BULLETIN ALSO CONTAINS A NEW PART NUMBER FOR A "FEDERAL" PROM.
CONCERN:
Some owners of 1991 Roadmasters may comment on low speed driveability concerns or engine detonation (spark knock).
CORRECTION:
Replace the ESC and PROM with the parts listed below:
DESCRIPTION
PART NUMBER
ESC Module
16175099
Broadcast Code (BARC)
Broadcast
Scanner
Part
Model
Code
I.D.
Number
Year
Application
AYMJ
5941
16165912
1991
5.0L L03
California emissions
BCDU
1391
16181390
1991
5.0L L03
Federal emissions
Parts are currently available from GMSPO.
WARRANTY INFORMATION:
Labor Operation No.: T0500
Labor Time: 0.4 hour