Where is the EGR valve normally located?
intake manifold
The EGR valve is usually located near or attached to the intake manifold, with a tube running to the exhaust manifold. There should also be a vacuum or electrical connector (or both) running to the valve which will need to be detached.
Where is the EGR solenoid located?
It is normally attached to the engine block with a nut and is close to the EGR valve. The solenoid can be located by following the rubber vacuum hose from the EGR valve on the back of the engine block to the solenoid. Replacing the EGR solenoid can be done in just a few minutes and you can save time doing it yourself.
What are EGR passages?
The EGR system includes the EGR valve and the tubing and passages between the exhaust and intake ports. The ECM controls the valve according to input from various sensors. Its primary function is to reduce the amount of the harmful gas NOx or Nitrogen Oxides created in the combustion chamber.
How is the VSV connected to the EGR valve?
The VSV is connected to the EGR valve. The function of the EGR system is to recirculate exhaust gases to the intake manifold of the engine and thereby reduce the nitrous oxide emissions of the vehicle (References 1). Detecting a bad VSV is difficult, but can be accomplished after completing a few tests.
What’s the EGR code for a vacuum switching valve?
The dreaded EGR related code for insufficient flow. My intent here is to give other people the information needed to easily change the Vacuum Switching Valve on their 4WD model and avoid disassembling the entire engine.
Where is the VSV located on a car?
Detecting a bad VSV is difficult, but can be accomplished after completing a few tests. Locate the vacuum switching valve. It has three vacuum hoses and a two-wire electrical connector attached to it. On four-cylinder engines, the VSV is located on the rear of the engine below the intake manifold.
What is the function of the EGR system?
The function of the EGR system is to recirculate exhaust gases to the intake manifold of the engine and thereby reduce the nitrous oxide emissions of the vehicle (References 1). Detecting a bad VSV is difficult, but can be accomplished after completing a few tests.