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Engine/vin ID GMC Sonoma Syclone

Application 1 illustration ~149 words

1990-91 MODEL COVERAGE & IDENTIFICATION

ModelBodyEngine (1)VINFuel SystemIgnition
Astro & SafariM, L4.3L (LB4)ZTBIMagnetic
4.3L (LU2) (2)BTBIMagnetic
Blazer & JimmyV5.7L (LO5)KTBIMagnetic
6.2L (LH6) (3)CDieselN/A
6.2L (LL4) (4)JDieselN/A
Lumina APV, Silhouette, Trans SportU3.1L (LG6)DTBIMagnetic
Parcel Van (P20/35)P4.3L (LB4)ZTBIMagnetic
5.7L (LO5)KTBIMagnetic
6.2L (LH6) (3)JDieselN/A
6.2L (LL4) (4)JDieselN/A
7.4L (L19)NTBIMagnetic
Pickup (C/K 10/35), SierraC, K4.3L (LB4)ZTBIMagnetic
5.0L (LO3)HTBIMagnetic
5.7L (LO5)KTBIMagnetic
6.2L (LH6) (3)CDieselN/A
6.2L (LL4) (4)JDieselN/A
7.4L (L19)NTBIMagnetic
R/V 35R, V5.7L (LO5)KTBIMagnetic
6.2L (LH6) (3)JDieselN/A
6.2L (LL4) (4)JDieselN/A
7.4L (L19)NTBIMagnetic
Suburban, R/V 15/25R, V5.7L (LO5)KTBIMagnetic
6.2L (LH6) (3)JDieselN/A
6.2L (LL4) (4)JDieselN/A
7.4L (L19)NTBIMagnetic
S/T Series Blazer, Bravada, Jimmy, Pickup, Sonoma, SycloneS, T2.5L (L38) (2)ATBIMagnetic
2.5L (LN8) (5)ETBIMagnetic
2.8L (LL2)RTBIMagnetic
4.3L (LB4)Z(6) TBIMagnetic
Van (G10/35), Rally Van, VanduraG4.3L (LB4)ZTBIMagnetic
5.7L (LO5)KTBIMagnetic
6.2L (LH6) (3)CDieselN/A
6.2L (LL4) (4)JDieselN/A
7.4L (L19)NTBIMagnetic
]5.7L (L98)8PFIMagnetic
(1) Engine code is stamped on engine block. See ENGINE CODE LOCATION. (2) High Output (3) Light Duty emissions. (4) Heavy Duty emissions. (5) 2WD only. (6) Port fuel injection on Syclone.
(1)Engine code is stamped on engine block. See ENGINE CODE LOCATION.
(2)High Output
(3)Light Duty emissions.
(4)Heavy Duty emissions.
(5)2WD only.
(6)Port fuel injection on Syclone.

BODY, ENGINE, FUEL SYSTEM & IGNITION SYSTEM APPLICATIONS

VIN Identification

Numbers preceding the explanations in the legend below refer to the sequence of characters as listed on VIN identification label in Fig. (Scheme 1). The legend listed below will also be found in Fig. (Scheme 1).

Scheme 1

Scheme 1: VIN Identification
Scheme 1: VIN Identification

Sample VIN

  1. 2 G C D C 1 4 K 1 M R 1 0 0 0 0 1
  2. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Application (Sequential Number on VIN)Identification
1 Nation Of Origin
1U.S.A.
2Canada
3Mexico
2 Manufacturer
GGeneral Motors
3 Make & Type
AChevrolet Bus
CChevrolet Truck
JGMC Bus (Van)
KGMC MPV
NChevrolet MPV
TGMC Truck
8Multi-purpose Passenger Vehicle
4 GVWR & Brake System
B3001-4000/Hydraulic
C4001-5000/Hydraulic
D5001-6000/Hydraulic
E6001-7000/Hydraulic
F7001-8000/Hydraulic
G8001-9000/Hydraulic
H9001-10,000/Hydraulic
J10,001-14,000/Hydraulic
K14,001-16,000/Hydraulic
5 Line & Chassis Type
C(1) Conventional Cab 2-Wheel Drive
R(1) Conventional Cab 2-Wheel Drive
V(1) Conventional Cab 4-Wheel Drive
K(1) Conventional Cab 4-Wheel Drive
GVan 2-Wheel Drive
6 Truck Series or Cab Type
11/2 Ton
23/4 Ton
31 Ton
7 Body or Chassis Type
1Hi-Cube & Cutaway Van
2Forward Control
34-Door Cab
42-Door Cab
5Van
6Suburban
7Motor Home Chassis
8Utility (Blazer & Jimmy)
9Stake & Platform, Extended Cab
8 Engine Code (2)
B4.3L V6 TBI (LB4)
C6.2L V8 Diesel
D4.1L 6-Cylinder 2-Bbl.
E5.7L V8 2-Bbl.
F5.0L V8 4-Bbl.
H5.0L V8 4-Bbl./TBI
J6.2L V8 Diesel
K5.7L V8 4-Bbl./TBI
L5.7L V8 4-Bbl.
M5.7L V8 4-Bbl.
N4.3L V6 4-Bbl./TBI (1983-86)
N7.4L V8 TBI (1987-90)
P5.7L V8 2-Bbl.
T4.8L 6-Cylinder 1-Bbl.
W7.4L V8 4-Bbl.
Z4.3L V6 TBI
9 Check Digit0 thru 9, or X
10 Vehicle Model Year
L1990
M1990
11 Assembly Plant Code
ALakewood
BBaltimore
EPontiac
FFlint
JJanesville
SSt. Louis
VPontiac
ZFt. Wayne
OPontiac
1Oshawa
2Moraine
3Detroit
4Scarborough
5London
7Lordstown
8Shreveport
12-17 Serial NumberSequential Production Number
(1) Includes Suburban, Chevrolet Blazer & GMC Jimmy (2) Stamped on Engine block. See ENGINE CODE LOCATION .
(1)Includes Suburban, Chevrolet Blazer & GMC Jimmy
(2)Stamped on Engine block. See ENGINE CODE LOCATION .

VIN DEFINITION

ENGINE CODE LOCATION

The locations of the stamped codes for each particular engine are listed below. Refer to 1990-91 MODEL COVERAGE & IDENTIFICATION .

Engine CodeLocation(s)
LU2, LB4, LO3, LO5 & L19On front of engine block, on right side above timing gear cover OR on left side of engine block, on engine-to-transmission mating flange.
LN8 & L38On left side of engine block, at rear below cylinder head OR on left side of engine block, on engine-to-transmission mating flange.
LL2On front of engine block, on left side above timing gear cover OR on right side of engine block above engine mount.
LH6 & LL4On front of engine block, right side of timing gear housing casting OR on top of engine block, near left cylinder head-to-engine block mating surface, at front OR on left side of engine block, on engine-to-transmission mating flange.
LG6On left side of engine block, on engine-to-transmission mating flange.
(1) See ENGINE in BODY, ENGINE, FUEL SYSTEM & IGNITION SYSTEM APPLICATIONS table for engine code location prefix.
(1)See ENGINE in BODY, ENGINE, FUEL SYSTEM & IGNITION SYSTEM APPLICATIONS table for engine code location prefix.

ENGINE CODE LOCATION

MODEL YEAR IDENTIFICATION

VIN CodeModel Year
J1988
K1989
L1990
M1991

MODEL YEAR VIN CODE APPLICATION