Skylark L4-138 2.3L DOHC VIN D MFI QUAD 4 (1989)
Ignition Coil: All Technical Service Bulletins
Campaign - Faulty Quad 4 Ignition Coil
Model Year: 1990
Bulletin No.: 90-C-11
File in Group: 6E
Number: 24
Date: March, '91
SUBJECT:
QUAD 4 IGNITION COIL
MODELS AFFECTED:
CERTAIN 1988-90 SKYLARK WITH 2.3L ENGINE (VIN CODE D)
CONDITION
General Motors has determined that some 1988-90 Buick Skylark models equipped with 2.3L (VIN Code D) engine (option LD2) may develop cracks in
the case of the I.D.I. (Integrated Direct Ignition) coil at the high voltage terminals. As the cracks grow, external arcing occurs between terminals and/or
terminal to coil frame resulting in intermittent misfire, rough idle, and ultimately "no start" condition when the coil fails completely.
DEALER ACTION
To correct this condition, dealers are to inspect the ignition coils, and if necessary, replace coils as instructed in the Service Procedure section of this
bulletin.
VEHICLES INVOLVED
Certain 1988-90 Buick Skylark models equipped with 2.3L (VIN Code D) engine within the following breakpoints:
THROUGH AND
YEAR
PLANT
FROM
INCLUDING
1988
Lansing
JM000002
JM054799
1989
Lansing
KM000001
KM061525
1990
Lansing
LM000006
LM066523
NOTICE:
VEHICLES LISTED IN BUICK'S RECORDS AS PREVIOUSLY REPAIRED UNDER LABOR OPERATION T4676 WERE DELETED FROM
THIS CAMPAIGN.
All vehicles listed on the dealer printout will require inspection, and as necessary, correction. Other suspect vehicles should be checked for campaign
involvement by utilizing the Vehicle Information Service System (V.I.S.S.) for verification.
