Chevy Egr Valve Diagram

Learning how to test an egr valve will save you time money and some headaches.

Chevy egr valve diagram. Consequently this results in the reduction of nitrogen oxide emissions. Chevy silverado 2007 egr valve gasket by fel pro. If you suspect that the egr valve is behind your engine s rough idle condition this tutorial will help you to troubleshoot it with 2 simple tests. Also check for a possible damaged exhaust manifold manifold to cylinder head leak or exhaust flex joint problem spring seal.

By burning exhaust for a second time within the intake system. And when the egr valve gets stuck open it ll cause a rough idle condition that may hard to diagnose. On a general motors chevrolet or gmc v8 engine the egr exhaust gas recirculation valve is located on the passenger side of the. Some of these engines did not have an egr in 2002 but if it did it would be in the diagram below.

The egr valve in photo 4 of 4 with the green check mark is the one covered by this article. This location is atop of the engine near the carburetor usually towards the back of the engine near the firewall. The egr valve in photo 3 of 4 with the red x is not covered by this article and is tested differently. The egr valve is a circular metal component with a vacuum hose coming off of it.

The purpose of the egr valve is to recirculating engine exhaust gas to the back to the engine cylinders. If you need replacement procedures just let me know. Egr valve is pictured below. If you need the egr valve test for the egr valve marked with the x you can find it here.

The egr valve on a 1994 chevy is on the lower intake manifold beside the throttle body. Recirculation of the exhaust leads to a gradual accumulation of carbon particles inside the. After miles of service the exhaust gas recirculation egr system especially the egr valve will lead to engine performance problems due to carbon buildup components mechanical problems or vacuum hose leaks. Open the hood of the vehicle and locate the egr valve.

Here is how to change the egr valve on a gm 350 v8 engine. The 4 3l engine s egr valve is located on the top front of the engine. Egr valve test 2000 2009. Engineered using the latest technologies and global engineering resources the gaskets meet.

This tutorial covers the egr valve of the 1987 1995 throttle body fuel injection tbi. A leak at the manifold to valve gasket valve to tube gasket even the egr tube to manifold tube nut depending on your particular model. If you need durable gaskets to prevent leaks on your vehicle fel pro is the way to go. If you can t locate the egr valve refer to your owner s manual.