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All Models Except Diesel

WARNING: This page does not describe the selected car, but rather 241 other vehicles, including the 2018 Nissan Sentra, 2017 Nissan Sentra, 2008 Nissan Quest, 2007 Nissan Quest, and 2007 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect and plug vacuum hose to EGR valve. Connect a hand-held vacuum pump to EGR valve. With engine idling, apply vacuum to EGR valve. If vacuum holds and idle becomes unstable or engine stalls, EGR valve is functioning properly.
  2. Ensure engine is at normal operating temperature. Connect a vacuum gauge to EGR hose. Increase engine speed to about 3000 RPM. If vacuum is shown on gauge, system is functioning properly.
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