The exhaust gas recirculation valve is a component commonly found on many road-going vehicles. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your The presence of relatively loud noise, as well as vibration, could mean you have multiple issues.Start and warm the engine up enough so that it idles good. Loosen each valve adjuster lock nut and turn the adjuster shaft with a screw driver. The valve will get noisy and the engine RPM will go up. You want the highest engine RPM with the lowest tappet noise. Do this on each valve. You will notice that the engine RPMs go way up.