Testing Chevy Engine Coolant Temperature Sensor
Testing Chevy Engine Coolant Temperature Sensor. This should gradually drop to 2 volts or less, as the engine reaches, normal operating temperature. Check that radiator reservoir bottle is full and radiator itself is filled to top.
The reading should be 2000 ohm approx. Wait a minute or so for the screen to give you a reading of the cold water. Unplug the sensor electrical connector.
Connect The Black Lead Of The Digital Ohm Meter To A Solid Grounding.
Connect an obd2 scanner and look for related trouble codes. The cht sensor (see the photo) works the same way, but it measures the temperature of the cylinder head metal and is not immersed in coolant. It's difficult to know if the sensor is broken just from normal operation of the vehicle;
The Coolant Temperature Sensor On A Chevrolet Engine Is Used By The Vehicle's Computer To Determine How Hot Or Cold The Coolant Flowing Through The Engine Block Is At Any Given Time, So That The Computer Knows How To Properly Run The Engine.
Be sure that the radiator is cool before removing the radiator cap to avoid being scalded by hot coolant. Testing engine coolant temperature sensor. The return voltage signal, should be around 3 to 4 volts, when the engine is cold.
To Find Out, You Have To Test The Sensor Itself.
Get the engine surface temperature using an infrared thermometer or suitable cooking thermometer. The bumps at the bottom of the waveform represent temperature decreases when the thermostat opens and is controlling coolant temperature. The coolant temperature sensor on a chevrolet engine is used by the vehicle's computer to determine how hot or cold the coolant flowing through the engine block is at any given time, so that the computer knows how to properly run the engine.
An Engine Coolant Temperature Sensor Is Usually A Variable Resistor That Changes Resistance And Thus Voltage As The Coolant Temperature Changes.
Normal operating temperature varies with vehicle make and model. When the engine is first started, it will require more fuel in order to idle smoothly until it’s warmed up. The engine coolant temperature sensor is located in the coolant pipe, below the air intake pipe and behind the right cylinder head and is integral with the ect sensor.
Check That Radiator Reservoir Bottle Is Full And Radiator Itself Is Filled To Top.
The reading should be 2000 ohm approx. P0118 is a common obdii trouble code. Testing the coolant temperature sensor is a very quick process.
Post a Comment for "Testing Chevy Engine Coolant Temperature Sensor"