Engine - Poor Performance or No Start Condition: Overview
Model Year 1983Bulletin No. 83-238
File In Group 64
Number 23
Date Apr. '85
SUBJECT: RESTRICTED EXHAUST ON VEHICLES EQUIPPED WITH DUAL BED CONVERTERS
MODELS AFFECTED: 1983 EQUIPPED WITH 4.1L (VIN CODE 4) V-6 ENGINES
Some 1983 Buicks produced prior to March 1983 and equipped with 4.1L V-6 engines may develop a restricted exhaust due to the catalytic converter becoming plugged. This can result in poor engine performance or a no-start condition.
Effective with this bulletin, subject vehicles, which are determined to have a restricted converter, are to be repaired with the converter kit package which includes a converter shell with beads in the upper bed and a plug for sealing the lower bed after installing beads per the instructions in this bulletin.