What does the EGR do on a Chevy Blazer?
What does the EGR do on a Chevy Blazer?
The Blazer is equipped with an exhaust gas recirculation valve, commonly called the EGR. The EGR is the main component that controls the exhaust as it enters the engine intake manifold. The intake manifold cools the exhaust, preventing the engine from overheating.
Where is the EGR valve on a 4.3L engine?
Some of these engines did not have an EGR in 2002 but if it did it would be in the diagram below. The 4.3L engine’s EGR valve is located on the top, front of the engine. EGR valve is pictured below.. If you need replacement procedures just let me know..
What is the exhaust recirculation valve on a blazer?
The Blazer is equipped with an exhaust gas recirculation valve, commonly called the EGR. The EGR is the main component that controls the exhaust as it enters the engine intake manifold. The intake manifold cools the exhaust, preventing the engine from overheating. If the EGR is dirty, it will not function properly and exhaust will not get cooled.
When does something go wrong with GM EGR valve?
Vehicle runs great, just the annoying check engine light is on with one of the above diagnostic trouble codes stored in the PCM’s memory. When something goes wrong with the EGR system, you usually see one of the following: Chunks of carbon blocking the EGR valve’s pintle from fully seating in its seat.
The Blazer is equipped with an exhaust gas recirculation valve, commonly called the EGR. The EGR is the main component that controls the exhaust as it enters the engine intake manifold. The intake manifold cools the exhaust, preventing the engine from overheating.
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 kind of exhaust valve does a Chevy Blazer have?
The Blazer is a midsize sport utility vehicle deigned and manufactured by Chevrolet. The Blazer is equipped with an exhaust gas recirculation valve, commonly called the EGR. The EGR is the main component that controls the exhaust as it enters the engine intake manifold.
What does it mean when the EGR valve does not have vacuum?
The vacuum hose that connects to the EGR valve should not have vacuum. Let’s take a look at what your test results mean: CASE 1: Vacuum WAS NOT present. This is the correct and expected test result since manifold vacuum should NOT be present when the engine is idling.
What happens when the EGR valve gets stuck on a GM 4.3L?
This tutorial addresses a very common problem I’ve seen on the 1987-1995 GM 4.3L, 5.0L, and 5.7L engines with throttle body fuel injection system: a stuck open EGR valve. And when the EGR valve gets stuck open, it’ll cause a rough idle condition that may hard to diagnose.
The Blazer is a midsize sport utility vehicle deigned and manufactured by Chevrolet. The Blazer is equipped with an exhaust gas recirculation valve, commonly called the EGR. The EGR is the main component that controls the exhaust as it enters the engine intake manifold.
Can a EGR valve be removed from a Mount?
Loosen the four bolts securing the valve in place. Once the bolts are removed, the EGR can be lifted off the mount. Removal of the valve may require some force due to excessive carbon buildup in and around the component.
