GM Service Manual Online
For 1990-2009 cars only

Engine Cooling System Specifications Gasoline

Application

Specification

Metric

English

Cooling Type

Forced Water Circulation

Electric Cooling Fan

  • Cooling Fan Type

Electric

  • Blade Number

5

  • Cooling Fan Diameter

320 mm

12.6 in

  • Temperature at Low Speed ON

96°C

204.8°F

  • Temperature at Low Speed OFF

94.5°C

202.1°F

  • Temperature at High Speed ON

99°C

210.2°F

  • Temperature at High Speed OFF

97.5°C

207.52°F

Radiator Type - 2.0L

Cross-flow

Radiator Type - 2.5L

Down-flow

  • Core Width

701 mm

27.60 in

  • Core Height

372 mm

14.65 in

  • Core Depth

18 mm

0.71 in

Thermostat Type

Wax Expansion Pellet Type

  • Temperature - Opened Initially - 2.0L

83-87°C

181.4-188.6°F

  • Temperature - Opened Initially - 2.5L

80-84°C

144-215.2°F

  • Temperature - Perfectly Opened - 2.0L

100°C

212°F

  • Temperature - Perfectly Opened - 2.5L

97°C

206.6°F

  • Temperature - Perfectly Closed - 2.0L

78-82°C

172.4-179.6°F

  • Temperature - Perfectly Closed - 2.5L

77-81°C

170.6-177.8°F

  • Stroke - Perfectly Opened

8 mm

0.315 in

Water Pump Type

Centrifugal

  • Impeller Diameter

65 mm

2.56 in

  • Impeller Blade Number

6