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In this Video, I'm cleaning the EGR and TESTING it on how it behave. By understanding the behavior of the EGR, you can easily diagnosis the problem quickly and simply. This is an EASY DIY Clean the EGR valve and passages using a few common tools and EGR valve with carb cleaner. By having it function normally, you can restored engine performance and saved your engine and from irreversible damage.
Here is a small function of the EGR Valve: During operation, the EGR system pulls a small amount of exhaust gases from the exhaust manifold through the EGR valve, into the intake manifold, and back into the combustion chambers. Theses gases mix with the air-fuel mixture inside the cylinders to reduce high temperatures during the combustion process.
Example of bad EGR symptoms:
--- Solenoid valve sticks open.
--- Solenoid valve sticks closed or passages become clogged.
--- The engine idles erratically, surges, rough and even stalls as it warms up or as you drive at low speeds.
--- Engine cylinders temperatures will increase, leading to a knocking condition.
--- Tapping / Ticking noise coming from the engine
--- Car / Truck computer will trigger the Check Engine light or MIL (malfunction indicator light).
Depending on your car's / Truck's make and model, your engine may be using one of three common types of EGR Valves: Vacuum controlled (older models), electronic-vacuum controlled valve (In the Video), or the new electronic controlled digital valve.
Clean the valve and EGR system passages every 18 or 24 months as part of your vehicle maintenance schedule.
NOTE: In this Video is 4.3L in a Blazer / S10, but you can apply this to ANY Car / Truck!
You can also apply to: GM Chevrolet S10, Blazer, Silverado, Express, Chevy Suburban, Tahoe, Silverado Pickup Truck, Jimmy, GMC Yukon, Sonoma, Sierra, Savana.
Year Known; 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
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