Posted 3/5/2015 07:12 (#4432313 - in reply to #4432221) Subject: RE: what is this?
northeastern Ohio
My guess: flow control valve for the egr system? Some engines use a butterfly valve on the intake to cause the engine to ingest more soot from the egr. Less soot out the exhaust, but more wear on the engine... another great plan from the EPA*****
what is this?
