Should the valve STAY open when maintaining revs at 2000-3000rpm, engine at operating temp, trans in park? Mine just opens very slightly , < 1/16", for a second then seems to close again which I verified with a vacuum gauge. It went to full vacuum then dropped back to zero in a second or 2 while maintaining the 2-3k rpm. Going above 3000 doesn't make a difference.
- posted
11 years ago