GM Service Manual Online
For 1990-2009 cars only

Engine Fails To Reach Normal Operating Temperature for Chevrolet Spark 2009

Checks

Actions

Thermostat is stuck open or the wrong type

Install a new thermostat of the correct type and heat range.

Coolant level is below the MIN mark on the surge tank

Add sufficient coolant to raise the fluid to the specified mark on the surge tank.