E1 - Vacuum Check

- Disconnect vacuum booster hose from booster.

- Connect vacuum gauge Rotunda model 059-00008 or equivalent to the vacuum hose with a T-fitting.

- Key ON, engine running. Allow engine to reach normal operating temperature.

- Record the vacuum pressure.

- Is the vacuum reading 457-533 mm-Hg (18-21 in-Hg)?

YES -- GO to E2. E2 - System Inspection

NO -- Tune-up or repair engine as required.