On-Vehicle Inspection [12/2019 - ]: Procedure
- INSPECT VACUUM SENSOR ASSEMBLY
- Start the engine.
- Turn the ignition switch off.
- Compare the "Brake Boost Pressure" values before and after the brake pedal was depressed 5 times.
Powertrain > Stop and Start > Data List
Tester Display Brake Boost Pressure Standard
Internal pressure changes by 20 kPa (150 mmHg, 5.91 in.Hg) or more.
HINT:
- Standard atmospheric pressure is 101 kPa (758 mmHg, 29.8 in.Hg).
- For every 100 m (328 ft.) increase in altitude, atmospheric pressure drops by 1 kPa (8 mmHg, 0.295 in.Hg).
- Atmospheric pressure varies with weather.