Should An Egr Valve Hold Vacuum?

Should An Egr Valve Hold Vacuum? The EGR valve should open and hold the vacuum for 20 seconds. If the valve does not operate properly, replace the valve. With the engine at normal operating temperature and running at idle speed, disconnect the vacuum hose from the EGR valve. How much vacuum does an EGR valve … Continue reading Should An Egr Valve Hold Vacuum?