MODEL IDENTIFICATION
Vehicle model can be identified by fifth character of Vehicle Identification Number (VIN), stamped on metal pad on top of left end of instrument panel, near windshield. See MODEL IDENTIFICATION table.
| Series (1) | Model |
|---|
| "C" | 2WD Pickup, Sierra |
| "G" | (2) Van |
| "K" | 4WD Pickup, Sierra |
| "P" | Commercial Van |
| (1) Vehicle series is fifth character of VIN. (2) Includes Rally Van and Vandura. |
| (1) | Vehicle series is fifth character of VIN. |
| (2) | Includes Rally Van and Vandura. |
BELT ADJUSTMENT
| Application | Tension - Lbs. (kg) |
|---|
| Commercial Van |
| New Belt | 135 (61.2) |
| Old Belt | 90 (40.8) |
| Van With 6.5L Diesel |
| New Belt | 146 (66.2) |
| Old Belt | 90 (40.8) |
| All Others | (1) |
| (1) Serpentine belt tension is maintained automatically by a spring-loaded idler pulley. No adjustment is necessary. |
| (1) | Serpentine belt tension is maintained automatically by a spring-loaded idler pulley. No adjustment is necessary. |
| Application | Specification |
|---|
| Coolant Replacement Interval | 30,000 Miles |
| Pressure Cap | 15 psi |
| Thermostat Opens |
| Starts | 188°F (87°C) |
| Fully Open | 206° (97°C) |
| Coolant Capacity Qts. (L) (1) |
| 4.3L (VIN Z) |
| "C" & "K" Series | 11.0 (10.5) |
| "G" & "P" Series | 12.1 (11.5) |
| 5.0L (VIN H) | 18.0 (17.0) |
| 5.7L (VIN K) | (2) 17.0 (16.0) |
| 6.5L Diesel |
| (VIN F, P & S) | 26.5 (25.0) |
| (VIN Y) | (2) 24 (23) |
| 7.4L (VIN N) | (2) 23.0 (22.0) |
| (1) Specification is approximate and includes heater capacity. (2) On vehicles with rear heater, add 3 extra quarts (2.8L) of coolant. |
| (1) | Specification is approximate and includes heater capacity. |
| (2) | On vehicles with rear heater, add 3 extra quarts (2.8L) of coolant. |
COOLING SYSTEM SPECIFICATIONS
