How to check EGR valve regulator 1994 chevy cavalier

SOURCE: WHERE DO I LOCATE THE EGR VALVE ON MY 2001 CHEVY IMPALA 3.8 V6

The egr valve is located at the end of a hose that plugs into youe valve cover. It is pushed right into a rubber grommet that is located in one of the valve covers. I hope this helps. don.t forget to rate my nswer, thanks

SOURCE: FAILED EGR VALVE

The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. This results in a cooler, more complete burn of the fuel which decreases you car's noxious emissions by prohibiting the formation of some harmful gases.

The EGR valve is vital to your car's emission controls.

When the EGR valve goes bad, it must be replaced - it cannot be repaired.

EGR Valve = Exhaust Gas Recirculation Valve.

The EGR valve controls formation of noxious emissions.

Rough idle and poor acceleration can be caused by a faulty EGR valve.

The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on accelertaion.

The only short term problem is a decrease in gas mileage - but it should really be replaced before sensors become sooted or your cat. convertor gets overworked prematurely.

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SOURCE: Where is the PCV Valve located on the 1996 4 cyl Cavalier?

the thumbscrew with a hose coming out on the pass. side of your valve cover

SOURCE: how to replace EGR valve on 99 Chevy Tracker

That sounds like a lot. The part should be only $50 or so. Check with some other repair shops.

SOURCE: rough idle poor acceleration

Click on this link, find your engine, then click on picture to expand it.

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800bfd7d