1999 Pontiac Sunfire Owner's Manual - Page 78
1999 Pontiac Sunfire Manual
Page 78 highlights
yellowblue Engine Coolant Heater (If Equipped) 2.4L L4 Engine 2.2L L4 Engine In very cold weather, 0_F (-18_C) or colder, the engine coolant heater can help. You'll get easier starting and better fuel economy during engine warm-up. Usually, the coolant heater should be plugged in a minimum of four hours prior to starting your vehicle. 2-18
yellow
blue
2-18
Engine Coolant Heater (If Equipped)
2.2L L4 Engine
2.4L L4 Engine
In very cold weather, 0
F (
-
18
C) or colder, the engine
coolant heater can help. You’ll get easier starting and
better fuel economy during engine warm
-
up. Usually,
the coolant heater should be plugged in a minimum of
four hours prior to starting your vehicle.