Fastener
Torque Specs
Cylinder Head Tightening Sequence
Intake Manifold
Tightening Sequence
Firing Order
Other Tools
OBD I Trouble Codes
Decoding your VIN
1G2 - Pontiac Passenger
1G3 - Oldsmobile Passenger
1G4 - Buick Passenger
1G6 - Cadillac Passenger
1G7 - GM of Canada Passenger
1GC - Chevrolet Truck
1GN - Chevrolet MPV
1GM - Pontiac MPV
1GH - Oldsmobile MPV
1GT - GMC Truck
J8C - Chevrolet Truck / Japan
A - Celebrity
B - Caprice
F - Camaro
J - Cavalier
L - Corsica / Beretta
W - Lumina
Y - Corvette
Pontiac
A - 6000
B - Safari
B - Parisienne (Exp only)
F - Firebird
H - Bonneville
J - Sunbird
M - Firefly
N - Grand Am
T - Lemans
W - Grand Prix
Oldsmobile
A - Cutlass Ciera
B - Custom Cruiser (RWD)
C - 98 Regency / Brougham
C - Touring Sedan
E - Toronado
E - Trofe`o
H - 88 Royale
N - Calais
N - Cutlass Intnl.
W - Cutlass
A - Century
B - Lesabre Elec. Estate Wagn
B - Roadmaster (Exp only)
B - Coachbuilder Wagon
C - Electra
E - Riviera / Reatta
H - Lesabre
J - Skyhawk
N - Skylark
W - Regal
Cadillac
C - Fleetwood 60 Spl / D'Eleg
C - Deville (FWD)
C - Comer / Chassis
D - Brougham
E - Eldorado
K - Seville
K - Seville Tourg
V - Allante
C - Cavalier
F - Cavalier Z24/Conv.
L - Caprice
L - Lumina
N - Caprice Classic
N - Lumina Eurosport
P - Camaro Sport Coupe / Conv.
T - Corsica
U - Caprice Classic Brhm (LS)
V - Beretta
W - Celebrity
W - Beretta GT
Y - Corvette
Z - Beretta GTZ
Z - Corsica LTZ
Z - Corvette ZR1
Pontiac
B - Sunbird LE
D - Sunbird SE
D - Parisienne (Exp Only)
E - Grand Am LE
F - Pontiac 6000
J - Pontiac 6000 LE
J - Grand Prix SE
L - Safari Wagon (Exp Only)
N - LeMans
P - Grand Prix SE
R - Firefly
R - LeMans SE
S - Firebird
S - LeMans GSE
T - Grand Prix STE
U - Sunbird GT
U - Parisienne (Exp Only)
W - Grand Am SE
W - Firebird Trans Am
X - Bonneville LE
X - LeMans Aero Coupe
Y - Bonneville SSE
Z - Bonneville SE
Oldsmobile
F - Calais S
H - Cutlass Supreme
J - Cutlass Ciera Wagon
K - Cutlass Intl.
L - Cutlass Calais
M - Cutlass Ciera SL / Wagon
N - 88 Royale
P - Custom Cruiser S/W
R - Cutlass Supreme Intl.
S - Cutlass Ciera Intl.
S - Cutlass Supreme SL
T - Calais SL
T - Cutlass Convertible
V - Trofe'o
V - Touring Sedan
W - 98 Regency Brougham
X - 98 Regency
Y - 88 Royale Brougham
Z - Toronado
B - Coachbuilder Wagon
B - Regal Custom
C - Reatta
C - Skylark Custom (4 dr)
D - Regal Limited
D - Skylark Limited (4 dr)
E - Skyhawk Sport
F - Electra T-Type
H - Century Custom
J - Skylark Custom (2 dr)
L - Century Limited
L - Estate Wagon
M - Skylark Limited (2 dr)
P - LeSabre Custom
R - LeSabre Limited
R - LeSabre Estate Wagon
S - Skyhawk
U - Electra Pk Ave. Ultra
U - Roadmaster (Exp Only)
V - Electra Estate Wagon
W - Electra Park Ave
X - Electra Limited
Z - Riviera
Cadillac
B - Fleetwood
D - DeVille (FWD)
L - Eldorado
R - Allante
S - Seville
S - Fleetwood 60 Spl.
W - Brougham
Y - Seville Touring Sedan
Z - Commercial Chassis
2 - Manual Belts (w/ built in safety mech.)
3 - Manual Belts (Dr Inflatable)
4 - Automatic Belts
C - 3.8L V6 MFI
D - 2.3L L4 MFI
E - 5.0L V8 TBI
F - 5.0L V8 MFI
G - 2.2L L4 TBI
J - 5.7L V8 MFI
K - 2.0L L4 TBI
L - 3.8L V6 MFI
M - 2.0L L4 MFI
N - 3.3L V6 MFI
R - 2.5L L4 TBI
T - 3.1L V6 MFI
U - 2.5L L4 TBI
V - 3.1L V6 MFI
Y - 5.0L V8 4BBL
Z - 4.3L V6 TBI
3 - 4.5L V8 MFI
5 - 1.6L L4 MFI
6 - 1.0L L3 TBI
6 - 1.6L L4 MFI
6 - 1.6L L4 TBI
7 - 5.7L V8 TBI
8 - 4.5L V8 MFI
8 - 5.7L V8 MFI
9 - 5.0L V8 4BBL
