Engine Cooling System Specifications

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

ENGINE COOLING SYSTEM SPECIFICATIONS

Application

Specification

Coolant Capacity

4.3L

⁽¹⁾ 12.6 Qts. (11.9L)

4.8L & 5.3L ⁽²⁾

⁽¹⁾ 13.4 Qts. (12.7L)

6.0L

⁽¹⁾⁽³⁾ 14.8 Qts. (14.0L)

6.6L

⁽¹⁾ 20.3 Qts. (19.2L)

8.1L

⁽¹⁾ 20.7 Qts. (19.6L)

Coolant Replacement Intervals

⁽⁴⁾ 150,000 Miles

Thermostat Opening Temperatures

Thermostat Starts To Open

188°F (87°C)

Thermostat Fully Open

206°F (97°C)

⁽¹⁾	Add about 0.4 Qts. (0.3L) if equipped with manual transmission.

⁽²⁾	Add about 1.5 Qts. (1.4L) if equipped with 5.3L and optional Air Conditioning.

⁽³⁾	Subtract about 0.4 Qts. (0.3L) if equipped with optional engine oil cooler.

⁽⁴⁾	Or every 60 months, whichever comes first. Use GM Goodwrench DEX-COOL®.