Quote Originally Posted by Previologist View Post

I dont know what an ACV is, only the IACV.
The part number for the ACV is 25740-76010, at least on my SC Estima. Megazip.net has a diagram of it and the SC. I recently just discovered it myself after trying to find why my SC won't keep oil. I read that the ACV is specially made to prevent a sort of pressure difference from the SC have oil creep up the tube. So I thought that maybe the ACV was faulty but it seems to be within spec. So it must be the SC seals as others have had the same problem.