What position does a thermostat fail at?
All thermostats will fail in either a closed or open position; there is no such thing as a thermostat that will fail in a “safe” position. Although some brands may claim a thermostat fails in a safe position, it simply locks itself open while it is in a full stroke open position.
How do you tell which way a thermostat goes in?
If the engine is cold but the thermostat is open, it is stuck and must be renewed. Otherwise, test it in a pan of water. Many thermostats are fitted a certain way, with one side marked ‘front’, ‘rad’ or with an arrow pointing towards the radiator. The opening temperature is usually marked on the thermostat rim.
Where is the thermostat in a 2001 Chevy Malibu?
The thermostat in your Malibu is located right in front on the intake manifold just below the air intake for the fuel injection. Thermostats can be purchased at any auto parts store and the Chevy dealer. Position a drain pan under the radiator drain petcock on the bottom of the radiator.
What does it mean when your thermostat is stuck?
The thermostat manages the amount of coolant that is distributed through the engine. If a thermostat is “stuck” that means it is over-cooling or not cooling the engine enough. One sign of this is an erratic temperature gauge where the engine goes up and then down in thermal temperature.
How can I tell if my thermostat is set correctly?
Check your box’s location, since placement in direct sunlight or in front of drafty windows and doors can greatly affect correct temperature regulation. Determine if the anticipator is set correctly. If you have a mechanical thermostat, check for a little metal tab that is mounted to a round dial on the inside.
Where do I find the thermostat on my car?
Find the thermostat. The location of the thermostat depends on your car. Although it is usually near the coolant fluid tank and the car engine, you should consult your owner manual for the exact location.
Why is the engine thermostat in the closed position?
The flow of coolant does not cycle through the radiator unless it is hot and needs to be cooled. When an engine is cold, the radiator fluid is cold, so the thermostat is in the closed position. When the engine starts up, and the coolant warms.