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An exhaust gas recirculation valve, or "EGR" valve, is an emissions-control devise which reduces the amount of nitrogen which escapes into the atmosphere. The EGR does this by routing a portion of the exhaust gases back into the intake manifold, where those chemicals are burned for a second time in the combustion chambers. A defective EGR valve commonly results in a rough idle and a decrease in power and fuel efficiency. Chevrolet equipped its 1990 passengers cars with a ported-type EGR valve. Fortunately, this type of EGR valve is the easiest to test. Difficulty:Moderately Easy
InstructionsThings You'll Need:- Hand-vacuum pump
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Apply the parking brake and shift the transmission into either "Park" or "Neutral."
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Start the engine and allow it to reach operating temperature.
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Turn the engine off.
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Inspect the rubber vacuum hose that attaches to the top of the EGR valve for signs of cracks or kinks. A damaged EGR hose should be replaced.
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Pull the rubber vacuum hose off of the top of the EGR valve.
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Press the hose which extends from the bottom of a hand-vacuum pump over the nipple on top of the EGR valve. This is the same nipple from which the rubber vacuum hose was attached to.
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Apply 10 inches of vacuum to the valve with the hand-pump.
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Position a mirror underneath the top of the EGR valve to inspect the valve's diaphragm. The diaphragm should remain open under the 10 inches of vacuum for a minimum of 20 seconds. If the diaphragm does not open, of if the needle on the hand-pump gradually drops before 20 seconds have expired, the EGR valve leaks and must be
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Who built more 57 Chevy or 57 fairlanes?
FORD
What is the distributor wiring for a 1994 Chevy 57?
18463572...
Where is the EGR Valve on a 2001 Ford Focus ZTS?
This is general information for people with EGR valve issues: - The EGR valve- on any car- is a small cast metal assembly connected between the intake manifold and the exhaust manifold. Its purpose is to sense high-carbon emmissions in the engine exhaust. If high enough, the valve opens and recycles the dirty exhaust back into the intake manifold, to be re-burned in the engine. If it's working properly, having an EGR valve cuts your output horsepower by about one third, because you're burning dirty air in your engine. - An EGR valve either works or it doesn't. If it doesn't, it needs to be replaced, not cleaned. Cleaning can remove some of the carbon and other deposits inside the valve, but not enough to do any good. It's also just about impossible to do any real cleaning of the sensor, which is the most important part. - If you know your way around your car's engine, look for a place where the intake manifold and the exhaust manifold seem to be hooked together. What's joining them is the EGR valve assembly. It isn't 'plug and play', but is usually mounted with four bolts. There's also a gasket underneath the assembly to provide a tight seal. If it's damaged or missing, that needs to be replaced, too. - About the only time anyone thinks about an EGR valve is when their car flunks the emmissions portion of the state vehicle inspection. Of course, they want to try to replace the thing themselves, to save money. That can happen, if they are at least a little mechanically inclined and have simple hand tools- wrenches, pliers, etc. Other times, it's better to have a mechanic do it and eat the cost, just to be sure it's done right. - The last EGR valve I replaced was in 1999, on a 1991 S-10 short block. Never having done it before, I fumbled around a little and the job took about 45 minutes. The new EGR cost $57 at Consumer Auto Parts.
What is the value of a Jim beam 57 Chevy decanter?
about 75$
What is the sexiest car?
The sexiest cars are the 57 Chevy belair and the 70 Chevy chevelle. HANDS DOWN.
How many gallons does a 99' Chevy cavalier hold?
15 gallons or 57 liters.15 gallons or 57 liters.
What is your grade test are 75 percent of average and Assignments are 25 percent your test grade average is a 57 and your assignment grade is a 75?
If Your test grade avearge is 57 and your assignment grade is 75 and the test grade counts for 75% and asignment 25%, then your grade is .75 (57) + .25(75) = 61.5
What are the release dates for American Hot Rod - 2004 '57 Chevy Part 1?
American Hot Rod - 2004 '57 Chevy Part 1 was released on: USA: March 2007
What are the release dates for American Hot Rod - 2004 '57 Chevy Part 2?
American Hot Rod - 2004 '57 Chevy Part 2 was released on: USA: March 2007
What are the release dates for American Hot Rod - 2004 '57 Chevy Part 3?
American Hot Rod - 2004 '57 Chevy Part 3 was released on: USA: March 2007
What factory frame will interchange with 57 Chevy 4 door?
Chevrolet 1955, 56 and 57, Passenger car and Sedan Delivery will interchange with your 4 door 57.
Can you get a replacement vin tag for a 57 Chevy?
See your local DMV.
