0 Members and 1 Guest are viewing this topic.
probably and air intake pre heater hose for cold days. my 16 vavle has that and an i.a.c. heater also.
Quote from: mrfuelish on June 02, 2007, 11:08:44 AMprobably and air intake pre heater hose for cold days. my 16 vavle has that and an i.a.c. heater also.No, its not on the air intake - it's on the 1/2-inch rubber line from the valve cover that vents crankcase fumes to the intake.It's a metal ring about the size of a quarter, with a 5/16 coolant supply and a 5/16 coolant return line.I've never seen anything like it. I can't imagine why crankcase vapors would need to be temperature-regulated, or that this small donut would actually do much as vapors passed through it.Anybody?