Mercury Repair Questions? Ask a Mechanic for Answers ASAP
Hi Im David. let try this. pull the egr valve off. that thing get clogged up with carbon deposits. and when there is humidity/moisture in the air it even clumps together more clogging up the passages. take a small bristle brush and rag, with some brake parts cleaner and clean out the passages on the valve and where it mounts to really really good. see if that helps.
keep me posted.thanks
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