Component Tests and General Diagnostics

INSPECTION
1. Idle the engine.
2. Disconnect the brake vacuum hose from the intake manifold, and then install the vacuum gauge.
3. Keep the engine at the idle speed and read the vacuum gauge indication.





By observing the gauge needle movement, the internal condition of the engine can be diagnosed as described below.





Vacuum pressure (at idling, A/C "OFF"): -60.0 kPa (-450 mmHg, -17.72 inHg) or less