GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Cooling 🢒 Engine Cooling System Specifications

Engine

Number Used

Opening Temperature

7.4L

2

91°C (195°F)

7.2L

1

82°C (180°F)