Does low coolant trigger check engine light?
Low coolant in the radiator of your car can trigger the malfunction illumination light (MIL), also known as the “check engine” light. Low coolant can affect the internal temperature of the engine, which is protected by the antifreeze.
What are the symptoms of a bad coolant temp sensor?
Symptoms of a Bad Coolant Temperature Sensor If your vehicle starts to use a lot more gasoline than usual, or black smoke is starting to come from the exhaust pipe, these are indicators that the coolant temperature sensor in your vehicle could be defective, and needs to be replaced.
What is the coolant temperature sensor on a VW Jetta?
Unfortunately, the coolant temperature sensor (CTS), or an Engine Coolant Temperature (ECT) sensor, is a very common Volkswagen MK4 Jetta problem that can lead to serious engine issues. The CTS is a sensor that monitors the temperature of your engine’s coolant, which gives a signal of how hot your engine is running.
What makes the Check Engine light come on on a VW?
When reading the codes with an OBD2 scanner, you will get codes such as P0300, P0301, P0302. Volkswagen engine coolant temperature sensor can fail, triggering check engine light to come on.
What’s the problem with my VW Jetta engine?
Coolant Temperature Sensor Failure Unfortunately, the coolant temperature sensor (CTS), or an Engine Coolant Temperature (ECT) sensor, is a very common Volkswagen MK4 Jetta problem that can lead to serious engine issues.
What is mass air flow sensor on Volkswagen Jetta?
I don’t want to downplay this problem because the Mass Air Flow (or MAF) Sensor is one of the most important engine sensors. If not maintained, it could leave your Jetta inoperable until fixed. A MAF sensor measures the air that comes in through the intake manifold, then sends this information to the engines ECU.
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