What do I need to test my coolant temperature sensor?
All you are going to need is thermometer and voltmeter to test the temperature sensor. The coolant temperature sensor will show different om reading at different temperatures. We will include the graph in the video so you can use it to test your temperature sensor.
Can a bad coolant sensor cause a car to not start?
Some cars use the engine coolant temperature sensor to control the electric cooling fans. You have two separate temperature sensors for the fans, dashboard gauge, and engine management in most cars. However, if your car has a single sensor, a bad engine coolant temperature sensor may result in your fans won’t start at all.
What should coolant temp be when engine is hot?
With a good OBD2 code reader, you can also check the live data and the parameters of the CTS sensor. Check that the temperature value of the CTS is around 80-90c when the engine is hot. A lot of engine coolant temperature sensors have two wires and the sensor is controlled by Ohm.
How can I tell if my engine is warm or cold?
If you have a new sensor on hand and want to check it, you can do this easy test. Connect the black lead of the meter to the body of the cold sensor and the red to the terminal. You should have a reading of approximately 2000 ohms. Check the warm sensor in your engine.
What should the temp of the coolant sensor be?
Check that the temperature value of the CTS is around 80-90c when the engine is hot. A lot of engine coolant temperature sensors have two wires and the sensor is controlled by Ohm. Get a wiring diagram and find out what ohms you should have at a specific temperature to check the function.
Some cars use the engine coolant temperature sensor to control the electric cooling fans. You have two separate temperature sensors for the fans, dashboard gauge, and engine management in most cars. However, if your car has a single sensor, a bad engine coolant temperature sensor may result in your fans won’t start at all.
Why does my Kawasaki MULE engine get hot?
There is a switch in the radiator that controls the fan, if no coolant is in contact with the sensor then your fan wont come on and the engine gets hot. To solve this you have to run the Mule until it gets warm and then park it on a hill with the nose up in the air.
When does an engine coolant temperature code set?
This trouble code sets when the powertrain control module (PCM) perceives that the input signal from the engine coolant temperature (ECT) sensor is intermittent or erratic for a set period of time. If the vehicle has two coolant temperature sensors, the ‘1’ portion of the code points to sensor # 1.
What does p0119 mean on the coolant sensor?
The P0119 is a trouble code that indicates a possible issue with the vehicle’s engine coolant temperature sensor or its circuit. What are the causes and symptoms of this trouble code and how should you address it? Answer these questions and more with this guide.
What to do when coolant temp does not go up?
If the readings you get in the Coolant Temperature will not go beyond 160° – 170° F in the span of 15 minutes, then try to put your foot on the brake, shift to Drive and then press the throttle for around two to three minutes and see if the readings increase.
How can I test the coolant temperature sensor?
Many inexpensive shop manuals tell you to test an engine coolant temperature sensor using an ohmmeter. You can do that, but it’s not a very accurate test. Most pro’s test actual voltage coming out of the engine coolant temperature sensor. See the diagram below for where to test voltage. It’s always on the return signal wire.
What does it mean when coolant sensor does not change?
This will indicate that your coolant sensor is responding to engine temperature. Also, make sure the engine reached operating temperature at about 200F (93C) before dropping. If engine temperature didn’t change much throughout your readings, the thermostat is stuck open and you need to replace it.
How can I get the coolant temperature of my car?
Get the engine surface temperature using an infrared thermometer or suitable cooking thermometer. Take the engine temperature on a location near the coolant temperature sensor. Okay, at this point you may be wondering why you need to take the engine temperature to troubleshoot the sensor.
What happens when the coolant temperature of an engine goes up?
Engine efficiency, power and fuel economy all improve as the engine temperature rises. Ideally, the engine will run as hot as possible without boiling its coolant or damaging its components. But a faulty engine coolant temperature (ECT) sensor can cause havoc on an engine or its related systems.
All you are going to need is thermometer and voltmeter to test the temperature sensor. The coolant temperature sensor will show different om reading at different temperatures. We will include the graph in the video so you can use it to test your temperature sensor.
What happens to the p0115 coolant temperature sensor?
As the temperature of the coolant changes, the resistance changes on the ground signal to the PCM. When the engine is cold, the resistance is high. When the engine is warm, the resistance is low. If the PCM detects a voltage condition that seems abnormally low or high, P0115 will set. An example of an Engine Coolant Temperature ECT sensor
What are the symptoms of a bad coolant temperature switch?
1. Poor fuel economy 2. Black smoke from engine 3. Overheating engine 4. Check Engine Light comes on The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor that is used to monitor the temperature of the engine’s coolant.
How can I tell if my temperature sensor is bad?
If the temperature is about 0 def. F., the resistance will be over 10,000 Ohms. With this test you should be able to tell if the resistance of the sensor matches the temperature of the engine. If it’s not accurate according to your engine’s temperature, then you probably have a bad sensor. 3.