A bad egr solenoid can cause a variety of different trouble codes so having the computer scanned for.
Egr valve regulator solenoid circuit fault.
There are two types of bad egr valves which have different symptoms.
It could also remain clogged by carbon and debris.
How to test the ford egr valve egr vacuum solenoid dpfe sensor.
The evr solenois can be found by following the vacuum line from the egr valve to the solenoid.
The code 558 in your f 150 indicates that there is a circuit fault in the egr vacuum control solenoid evr or circuits related to the solenoid.
An illuminated check engine light is another symptom of a bad or failing egr control solenoid.
When a vehicle s combustion temperature rises above 2500 degrees the egr valve opens and the vacuum draws in exhaust to help balance out harmful emissions.
If the valve sticks open.
If the computer detects an issue with the egr solenoid circuit or system it will set off the check engine light to notify the driver of the issue.
Testing the ford egr valve egr valve vacuum solenoid and dpfe sensor on ford lincoln mercury and mazda.
The code 1409 in most case is set due to a bad egr control solenoid.
Then disconnect the egr vacuum regulator valve.
Egr valve symptoms can vary however the most common symptoms of a faulty egr valve are explored below.
Common symptoms of a bad egr valve.
Your engine has a rough idle a rough idle when starting your vehicle or during brief stops i e.
The egr system is controlled by the egr control solenoid.
Next disconnect the electrical connector then disconnect the vacuum hoses.
Low engine speeds with a warmed up engine can be caused when the egr is constantly open and a continuous flow of exhaust gases goes into the.
An egr switch consists of a valve vacuum and solenoid.
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An egr valve can become faulty in two ways.
The egr solenoid controls the vacuum process through the valve and if it malfunctions major problems can develop.
Replacing the defective egr control solenoid will likely correct your concern.
When the egr control solenoid is activated a passage is opened up that allows exhaust gases into the intake manifold.
When an egr valve is an open position it creates a vacuum leak.
To remove the egr valve you should first remove battery ground cable.
