Engine Cooling Specifications
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
COOLING SYSTEM SPECIFICATIONS
| Application | Specification | |||
|---|---|---|---|---|
| Coolant Capacity | ||||
| 4.3L | 12.9 Qts. (12.2L) | |||
| 4.8L & 5.3L | 13.7 Qts. (13.0L) | |||
| 6.0L | 15.2 Qts. (14.4L) | |||
| 6.6L | 20.3 Qts. (19.2L) | |||
| 8.1L | 21.1 Qts. (20.0L) | |||
| Coolant Replacement Intervals | (1) 150,000 Miles | |||
| Thermostat Opening Temperatures | ||||
| Thermostat Starts To Open | 188°F (87°C) | |||
| Thermostat Fully Open | 206°F (97°C) | |||
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