Intake Manifold Vacuum Inspection

INTAKE MANIFOLD VACUUM INSPECTION
- Verify that the intake-air system hoses are fitted securely.




- Disconnect the vacuum hose from the pressure regulator and connect to vacuum gauge as shown.
- Start the engine and let it idle.
- Measure the intake manifold vacuum by using a vacuum gauge.

Vacuum: More than 60 kPa (18 in. Hg.)

- If not as specified, check following
- Air suction at:
Throttle body installation point
Intake manifold installation point
PCV valve installation point
- Accelerator cable free play
- Engine compression