Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSNISSAN-DATSUN2012SENTRA SE-RREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESMECHANICAL - HYDRAULICBRAKE SYSTEMSERVICE INFORMATIONSERVICE DATA AND SPECIFICATIONS (SDS)CHECK VALVE
2012 Nissan-Datsun Sentra SE-R
Check Valve
2012 Nissan-Datsun Sentra SE-RSECTION Check Valve
| Use suitable tool (A) to check for vacuum leakage when connected to booster side (B) [at vacuum of - 66.7 kPa (- 500 mmHg, - 19.69 inHg] | Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds |
| Use suitable tool (A) to check for vacuum leakage when connected to engine side (2) | No vacuum should exist. |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.