Fuel Injected Engine

1. Start the engine and let it idle.






2. Disconnect # 16 vacuum hose from the Exhaust Gas Recirculation (EGR) valve and connect a vacuum pump to the EGR valve.
3. Apply vacuum of 150 mmHg (6 in.Hg).
^ If vacuum remains steady and the engine dies, the EGR valve is working properly.
^ If vacuum does not remain steady and the engine does not die, replace the EGR valve and re-test.
^ If vacuum remains steady but engine does not die, remove the EGR valve; check the EGR valve and manifold for blockage, clean or replace as necessary and re-test.