Grand AM L4-138 2.3L VIN A FI HP (1989)
Ignition Coil: Customer Interest
Engine - Miss, backfire, Rough Idle, or Hard Start
Bulletin Number:
90-6-47
Reference Number:
076404
Publish Date:
12/90
Subject:
ENGINE MISS, BACKFIRE, HARD START, ROUGH IDLE OR CHUGGLE INSTALL NEW IGNITION COILS
Models
Affected:
1987-90 GRAND AM AND GRAND PRIX MODELS W / 2.3L VIN D, A
CONDITION:
Some 1987-90 Grand Am or Grand Prix models equipped with 2.3L (VIN Code D or A) may exhibit engine miss, backfire, hard start, rough idle or
chuggle. These conditions may be caused by the ignition coil. If diagnosis leads to the ignition coil, it will be necessary to replace both.
The new type coils have a revised electrical connection tab that is yellow in color to aid in identification. The internal metal pins were also revised for
improved durability. These coils went into may 1990 vehicle production. Following are VIN breakpoints for the vehicles involved.
CORRECTION:
Replace BOTH coils with package P/N 10457062. This package contains two coils.
WARRANTY INFORMATION:
Labor Operation Number:
T4676
Labor Hours
: 0.7 hour (Includes diagnostic time)
Trouble Code
: 92