GM Service Manual Online
For 1990-2009 cars only

United States


Object Number: 868141  Size: A2

Canada


Object Number: 868144  Size: A2

This gage shows the engine coolant temperature.

It also provides an indicator of how hard your vehicle is working. During a majority of the operation, the gage will read 210°F (100°C) or less. If you are pulling a load or going up hills, it is normal for the temperature to fluctuate and approach the 250°F (122°C) mark. If the gage reaches the 260°F (125°C) mark, it indicates that the cooling system is working beyond its capacity.

See Engine Overheating .