Lumina L4-151 2.5L (1991)
Spark Plug: Technical Service Bulletins
Spark Plug - Torque Specification Update
Number:
91-79-6A
Section:
6A
Date:
October 1990
Corporate Bulletin No.:
Subject:
SPARK PLUG TORQUE SPECIFICATIONS
Model and Year:
1990 CELEBRITY
1990-91 BERETTA, CORSICA CAMARO,
CAVALIER AND LUMINA,
1990-91 U VAN (APV)
TO:
ALL CHEVROLET DEALERS
When installing spark plugs in the 3.1L engine use the following revised specification in the Service Manuals listed below:
Cast Iron or Aluminum Heads,
15 N-m (11 lbs.ft.)
1991
Lumina
Pages 6D4 - 4, 5, 7
Cavalier
Pages 6A3 - 19
Camaro
Pages 6A2 - 31
Pages 6D4 - 7, 9
Corsica/Beretta
Pages 6D4 - 3, 6
Pages 6A5 - 24
Lumina (APV)
Pages 6A4 - 20, 46
and 6D4 - 6
1990
Celebrity
Pages 6D4 - 3, 5
Lumina
Pages 6D4 - 4, 5, 6
Cavalier
Pages 6A3 - 19
Pages 6D4 - 3
Camaro
Pages 6A2 - 30
Pages 6D4 - 7, 8
Corsica/Beretta
Pages 6A5 - 20
Pages 6D4 - 2
Lumina (APV)
Pages 6A4 - 17, 41
and 6D4 - 6
