Idle Vacuum Check
The idle vacuum must be 19.3 to 20.2" Hg. (except new engine condition). If vacuum is not within the above limits, recheck idle speed, ignition timing, and tighten intake manifold.
The idle vacuum must be 19.3 to 20.2" Hg. (except new engine condition). If vacuum is not within the above limits, recheck idle speed, ignition timing, and tighten intake manifold.