Engine - Surge/Misfire/DTC Code 43/Oil In Distributor

89pontiac04

Bulletin Number: 88-6-89
Reference Number: 936504
Publish Date: 2/89
Subject: ENGINE ROUGH, SURGE, MISFIRE, CODE 43 (DISTRIBUTOR SHAFT P/N)

Models
Affected: 1987 GRAND PRIX MODELS WITH LG4 ENGINES
1987 SAFARI WAGON WITH LG4 ENGINES AND
1987-1988 FIREBIRD MODELS WITH LG4, LB9 OR L98 ENGINES
This bulletin supersedes bulletin 87-6G-56 dated 8/87 which should be discarded. This bulletin is being revised to include symptoms of surge, misfire and/or code 43.

Some vehicles equipped with 5.0L and 5.7L engines built with distributor, P/N 1103698, may exhibit a rough running engine condition, surge, misfire and/or Code 43. This condition may be the result of oil ascending the distributor shaft and accumulating inside the distributor cap.

If oil is found inside of the distributor cap, wipe the distributor cap, module and distributor base clean with a soft cloth and replace the distributor mainshaft assembly with P/N 10467353 per service procedures in section 6D4 of the appropriate Service Manual.

Parts are currently available from GMSPO.

Use applicable labor time and operation number.