1990-91 MODEL COVERAGE & IDENTIFICATION
| Model | Body | Engine (1) | VIN | Fuel System | Ignition |
|---|
| Astro & Safari | M, L | 4.3L (LB4) | Z | TBI | Magnetic |
| 4.3L (LU2) (2) | B | TBI | Magnetic |
| Blazer & Jimmy | V | 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LH6) (3) | C | Diesel | N/A |
| 6.2L (LL4) (4) | J | Diesel | N/A |
| Lumina APV, Silhouette, Trans Sport | U | 3.1L (LG6) | D | TBI | Magnetic |
| Parcel Van (P20/35) | P | 4.3L (LB4) | Z | TBI | Magnetic |
| 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LH6) (3) | J | Diesel | N/A |
| 6.2L (LL4) (4) | J | Diesel | N/A |
| 7.4L (L19) | N | TBI | Magnetic |
| Pickup (C/K 10/35), Sierra | C, K | 4.3L (LB4) | Z | TBI | Magnetic |
| 5.0L (LO3) | H | TBI | Magnetic |
| 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LH6) (3) | C | Diesel | N/A |
| 6.2L (LL4) (4) | J | Diesel | N/A |
| 7.4L (L19) | N | TBI | Magnetic |
| R/V 35 | R, V | 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LH6) (3) | J | Diesel | N/A |
| 6.2L (LL4) (4) | J | Diesel | N/A |
| 7.4L (L19) | N | TBI | Magnetic |
| Suburban, R/V 15/25 | R, V | 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LH6) (3) | J | Diesel | N/A |
| 6.2L (LL4) (4) | J | Diesel | N/A |
| 7.4L (L19) | N | TBI | Magnetic |
| S/T Series Blazer, Bravada, Jimmy, Pickup, Sonoma, Syclone | S, T | 2.5L (L38) (2) | A | TBI | Magnetic |
| 2.5L (LN8) (5) | E | TBI | Magnetic |
| 2.8L (LL2) | R | TBI | Magnetic |
| 4.3L (LB4) | Z | (6) TBI | Magnetic |
| Van (G10/35), Rally Van, Vandura | G | 4.3L (LB4) | Z | TBI | Magnetic |
| 5.7L (LO5) | K | TBI | Magnetic |
| 6.2L (LH6) (3) | C | Diesel | N/A |
| 6.2L (LL4) (4) | J | Diesel | N/A |
| 7.4L (L19) | N | TBI | Magnetic |
| ]5.7L (L98) | 8 | PFI | Magnetic |
| (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. |
| (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
MODEL YEAR IDENTIFICATION
| VIN Code | Model Year |
|---|
| J | 1988 |
| K | 1989 |
| L | 1990 |
| M | 1991 |
MODEL YEAR VIN CODE APPLICATION
