Pontiac 19210681 Valve Kit,EGR

The EGR Valve on GM vehicles is located on the intake manifold, by the carburetor. Most times, when a fault occurs in this emissions system it is caused by a stuck or corroded EGR valve. With the engine cold to prevent burns, reach under the EGR valve and manually push on the diaphragm. You should be able to press the diaphragm up and down within the housing using moderate pressure. If it does not or needs too much effort to move, then replace it with a new EGR valve. If you are unsure of its quality, visit your local parts store and compare the free movement of your EGR valve with a new one. The sixth part has more information about further testing of the EGR system and component replacement procedures.

On GM vehicles, the EGA valve is located on the intake manifold, adjacent to the carburetor, and faults in this emissions system often arise from a stuck or corroded EGA valve. To check the valve, ensure the engine is cold to prevent burns, then reach under the EGR valve and manually push on the diaphragm; with moderate pressure, the diaphragm should move up and down within the housing. If the diaphragm does not move or requires significant effort to do so, it is advisable to replace the EGA valve with a new one, and if there is uncertainty about the valve's quality, comparing its movement with that of a new valve at a local parts store can be helpful.

The EGR valve in GM vehicles is found on the intake manifold, near the carburetor or TBI unit. Often, issues in this emissions system are due to a stuck or corroded EGR valve. To check, with a cold engine to avoid burns, manually push the diaphragm under the EGR valve. If it doesn't move easily, replace the valve. If unsure, compare the movement of your valve with a new one.

The functioning of the EGR valve can be checked by manually depressing the EGR diaphragm. If the engine loses speed or stalls, it indicates that the valve is working correctly.