Is there a problem with the EGR valve?
EGR Valve Problems. EGR valves contain a spring-actuated diaphragm. A common problem is a rupture or leak in the diaphragm. Check the function of your valve by revving the engine to around 2,000 rpm. If the valve stem does not move, the valve may be faulty.
What is the fault code for Ford EGR?
Ford EGR systems are known for faulty DPFEs. A bad sensor will illuminate the check engine light and trigger any of the following fault codes: P0171, P0174 and P0401. This unit is far more likely to fail than your EGR valve.
Which is part of the EGR system does it control?
Your EGR system is comprised of several components. The EGR valve controls the flow of exhaust gas into your intake manifold. The EGR vacuum solenoid (EGR SV) controls the flow of engine vacuum.
What are the symptoms of a bad or failing EGR cooler?
Check Engine Light comes on Another symptom of a bad or failing EGR cooler is a Check Engine Light. If the computer detects a problem with the EGR system, such as insufficient flow or exhaust, it will set off the Check Engine Light to alert the driver of the issue.
Is there a position sensor on an EGR valve?
Vacuum controlled valves don’t have a position sensor to monitor how much the pintle actually opened or closed compared to how much the engine computer wanted it to open or close. When car makers converted over to electrically operated EGR valves, they installed position sensors to get feedback as to actual versus commanded position.
When to replace or clean the EGR valve?
Or, the EGR position sensor can fail, causing a check engine light. If your car is running fine at idle and you don’t have a check engine light, there’s no need to replace or clean an EGR valve. Some shops recommend periodic cleaning. I think that’s a waste of money.
How much does it cost to replace an EGR temperature sensor?
We recommend that you also get the EGR system checked as well if the sensor becomes faulty. The average cost to replace the EGR temperature sensor is between $190 and $260. The labor cost is between $30 and $80, while the part itself cost between $150 and $200.
What are the symptoms of a bad EGR temperature sensor?
The first symptom you will notice is that the check engine light illuminates. Any problem with the engine or sensor causes the check engine light to illuminate indicating that the car should be taken for diagnosis. 2. Knocking Sound from Engine One of the first problems you will notice is that the engine starts making a knocking sound.