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Home >> Chevrolet >> 2006 >> Optra LS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Engine Cooling) >> Diagnostic Information and Procedures >> Engine Fails To Reach Normal Operating Temperature

Engine Fails To Reach Normal Operating Temperature

WARNING: This page is about a different car, the 2005 Chevrolet Optra5 and 2005 Chevrolet Optra. However, it is still accessible from the selected car via links, so may be relevant.
Checks Actions
The thermostat is stuck open or the wrong type. Install a new thermostat of the correct type and heat range.
The 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.
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