Symptoms of a Faulty or Faulty EGR Temperature Sensor
Common signs include engine pinging or knocking, Check Engine light coming on, and an emissions test failing.
The EGR temperature sensor is an engine control sensor that is part of the EGR system. It works in conjunction with the EGR solenoid to control the flow of the EGR system. The sensor is installed between the exhaust and intake manifold and monitors the temperature of the exhaust gases. When the temperature rises, the EGR temperature sensor sends a signal to the computer, which increases the flow in order to reduce the pressure and temperature in the system.
When a sensor fails or has any problems, it can cause problems with the EGR system, which can lead to a failed emissions test and other issues. Usually, a bad or failing EGR temperature sensor causes several symptoms that can alert the driver to a potential problem that should be checked.
1. Ping or knocking in the engine
One of the first symptoms usually associated with a defective or failing EGR temperature sensor is a knocking or knocking sound in the engine. If the EGR temperature sensor is faulty, it will cause EGR system flow problems. This can cause the temperature of the cylinders to rise, which can cause knocking or knocking in the engine. A whistle or knock in the engine will sound like a metallic rattling sound coming from the engine bay and is a sign that there is a problem with the combustion process. Any problem that results in engine knocking or knocking should be addressed as soon as possible, as engine knocking can cause serious engine damage if left uncorrected.
2. Check Engine light comes on.
Another sign of a bad or faulty EGR temperature sensor is the Check Engine light. If the computer detects a problem with the sensor circuit or signal, it will turn on the Check Engine light to notify the driver of the problem. The Check Engine light can also be caused by a number of other problems, so it is highly recommended that you scan your vehicle for trouble codes.
3. Failed emission test
A failed emissions test is another sign of a problem with the EGR temperature sensor. There may be times when the sensor can fail or give false readings and cause the EGR system to malfunction without the Check Engine light coming on. This can result in the vehicle failing its emissions test, which can be a problem for states with strict emissions regulations.
The EGR temperature sensor is an important component of the EGR system and any problems with it can lead to emissions problems and even serious damage. If you suspect your EGR system or temperature sensor may be having problems, have your vehicle checked by a professional technician such as AvtoTachki to determine if the sensor should be replaced.
