Technology 

Can a bad EGR valve cause hesitation?

Joe Ford

Can a bad EGR valve cause hesitation?

A clogged or malfunctioning EGR valve can disrupt the vehicle’s air-fuel ratio, which can cause engine performance issues such as a reduction in power and fuel efficiency. The vehicle may also stall or hesitate while accelerating.

What problems does a clogged EGR valve cause?

A faulty EGR valve can cause problems with the flow and operation of the EGR system leading to performance issues including a reduction in power, reduced acceleration and decreased fuel efficiency. It can also cause vehicle emissions to increase.

How do you know if your EGR valve is bad?

The EGR valve has one purpose, to reduce the NOx pollutant (nitrogen) emitted by your car. It does this by recirculating some of the emissions back into the combustion chambers rather than sending them outwards. Some signs that yours is failing include a rough idle, poor performance, or decreased mileage.

How often should the EGR valve be replaced?

Average Life of EGR Valves An EGR valve may last 100,000 miles if the part is designed well, or it may last only 30,000 miles. Occasionally a part is faulty and requires replacing, but this is often covered under warranty depending on the age of the vehicle.

Can a car run without the EGR valve?

As per my research and going through the threads on EGR valves its OK to run without EGR. Yes it might affect the environment but no harm to engine as such. there are people who are running without EGR for more than 50k km. Also in all remapping they disable the EGR.

Is there a fuse for the EGR valve?

It doesn’t have its own fuse and a simple electrical test would prove if it wasn’t getting voltage anyhow. Also check with the garage if their diagnostic kit is fully compatible with Renaults.

Where is the EGR pressure sensor located?

Where are these sensors located? Mechanical EGR valve position sensors are mounted on the top of the EGR valve. EGR pressure sensors will be located close to the EGR valve as the exhaust gas hose must be connected to the sensor as well as the valve.