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View Full Version : Vacuum leak



trife86
11-16-2005, 11:07 PM
It has been suggested that i may have a vacuum leak so maybe you guys can help me confirm.

New rebuilt motor vac at idle usually only sits at like 14 - 15, Idle is great. Power is all there. off the gas and coasting in gear it will dip down to 20in

here is the thing maybe also hinting I have a 5% SC OD usually only making about 10.5psi and random nights it will do 12psi no on very cold nights or anything just random. Can you have a vac leak and still perfect idle in gear or in park?