What is the purpose of a EGR temperature sensor?
The EGR temperature sensor is an engine management sensor that is part of the EGR system. It works together with the EGR solenoid to control the flow of the EGR system. The sensor is installed in between the exhaust and intake manifold, and monitors the temperature of the exhaust gases.
Can a failed emissions test cause an EGR sensor to fail?
A failed emissions test is another symptom of a problem with the EGR temperature sensor. There can be instances where the sensor can fail or give a false reading and cause the EGR system to malfunction, without setting off the Check Engine Light.
Why is the EGR temperature sensor so important?
The EGR temperature sensor is an important component of the EGR system and any issues with it can lead to emissions problems and even serious damage.
Can a bad EGR sensor cause an engine to knock?
One of the first symptoms commonly associated with a bad or failing EGR temperature sensor is engine ping or knock. If the EGR temperature sensor malfunctions it will cause issue with the EGR system flow. This can cause cylinder temperatures to rise, which can cause engine ping or knock.
Where is the EGR located on a diesel engine?
On most modern diesel engines, an EGR cooler is used to cool the temperature of the exhaust gas before it enters the engine. The PCM relies on the EGR temperature sensors to monitor the cooler’s operation. Generally, one temperature sensor is located on the exhaust manifold, and one is located near the EGR valve.
What happens when the EGR temperature sensor fails?
This EGR valve is controlled through an EGR temperature sensor. The sensor collects vital information and based on this information, the EGR valve determines when to open and close. When the EGR temperature sensor fails, it causes various issues with the EGR system and the situation should be addressed quickly.
One of the first symptoms commonly associated with a bad or failing EGR temperature sensor is engine ping or knock. If the EGR temperature sensor malfunctions it will cause issue with the EGR system flow. This can cause cylinder temperatures to rise, which can cause engine ping or knock.
What happens if you have a bad EGR valve?
When the valve is opened, exhaust gases are allowed through the vehicle’s EGR system to help control vehicle emissions. When the EGR valve has an issue, it can cause problems with the flow and operation of the EGR system, which can lead to increased emissions and performance issues. Usually, a bad or failing EGR valve will produce any these 4…
What causes a temperature sensor to go bad?
A typical EGR temperature sensor should last a lifetime but it does go get damaged mainly due to carbon buildup or if it is exposed to intense heat, carbon or experienced continuous temperature fluctuation. We recommend that you also get the EGR system checked as well if the sensor becomes faulty.