Not familiar with model but on my car gently push up on the EGR diaphragm
(underside of valve) and feel if it moves smoothly. Also can feel
diaphragm with finger tip to see if moving when throttle opened. If not it
could be dirty and sticking. If you gently push up on diaphragm when
engine idling, engine will stumble. Not difficult to remove and clean EGR
valve. I wrote a description of cleaning mine for my website (see below)
under "Cars".


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