Thank you Andrew for your suggestion. I have taken the parts out and had them cleaned but still it shows insufficient vaccum value v~6 or 7. What else could I possibly check? Thank you! On Thu, Dec 9, 2010 at 9:03 AM, Andrew Saranganwrote: > Probably the blockage has moved further downstream, and into the > vacuum solenoid. Try removing the solenoid and cleaning it.