What does the EGR solenoid do?
What does the EGR solenoid do?
Its purpose is to recirculate exhaust gases that have exited the engine, back into the intake manifold so that they can be reburned. The EGR solenoid is controlled by the engine computer, and activated at very specific times in order to achieve the best performance, efficiency, and emissions from the engine.
Where is the EGR valve on a 1994 Chevy?
This will ensure that the components are cool and prevent potential burns. Open the hood of the vehicle and locate the EGR valve. The EGR valve on a 1994 Chevy is on the lower intake manifold beside the throttle body. The EGR valve is a circular metal component with a vacuum hose coming off of it.
What is the other side of the EGR vacuum solenoid?
The other side of the EGR vacuum solenoid has 2 ports. One is a vent port (that vents vacuum to the atmosphere) when the engine is idling. The other port connects to the EGR valve and should only have vacuum when the PCM commands the solenoid to activate.
Why is the vacuum hose stuck in the EGR valve?
This is a problem, since vacuum should not be present when the engine is idling. This could be caused by one of two possibilities… either the EGR solenoid is defective or the vacuum hose is attached to the wrong port on the EGR solenoid.
Where is the vent port on an EGR?
In case you’re wondering, the letter J is embossed above the vacuum port on the throttle body. The other side of the EGR vacuum solenoid has 2 ports. One is a vent port (that vents vacuum to the atmosphere) when the engine is idling.
This will ensure that the components are cool and prevent potential burns. Open the hood of the vehicle and locate the EGR valve. The EGR valve on a 1994 Chevy is on the lower intake manifold beside the throttle body. The EGR valve is a circular metal component with a vacuum hose coming off of it.
The other side of the EGR vacuum solenoid has 2 ports. One is a vent port (that vents vacuum to the atmosphere) when the engine is idling. The other port connects to the EGR valve and should only have vacuum when the PCM commands the solenoid to activate.
This is a problem, since vacuum should not be present when the engine is idling. This could be caused by one of two possibilities… either the EGR solenoid is defective or the vacuum hose is attached to the wrong port on the EGR solenoid.
In case you’re wondering, the letter J is embossed above the vacuum port on the throttle body. The other side of the EGR vacuum solenoid has 2 ports. One is a vent port (that vents vacuum to the atmosphere) when the engine is idling.
