Nissan Juke Service and Repair Manual : Positive crankcase ventilation

Inspection

1.CHECK PCV VALVE

With engine running at idle, remove PCV valve from rocker cover. A properly working valve makes a hissing noise as air passes through it. A strong vacuum should be felt immediately when a finger is placed over valve inlet.

Is the inspection result normal? YES >> INSPECTION END

NO >> Replace PCV valve.

Removal and installation


    Evaporative emission system
    Inspection 1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections, chafing and deterioration. 2. Check EVAP canister as follows: a. Block port (A) ...

    Other materials:

    Reservoir tank cap
    Inspection • Check valve seat of reservoir tank cap. - Check if valve seat (A) is swollen to the extent that the edge of the metal plunger (B) cannot be seen when watching it vertically from the top. - Check if valve seat has no soil and damage. • Pull negative-pressure valve to open it, a ...

    Diagnosis system (ECM)
    Diagnosis description Diagnosis description : 1st Trip Detection Logic and Two Trip Detection Logic When a malfunction is detected for the first time, 1st trip DTC and 1st trip Freeze Frame data are stored in the ECM memory. The MIL will not illuminate at this stage. <1st trip> If the s ...

    Diagnosis and repair work flow
    Work Flow DETAILED FLOW 1.INTERVIEW FROM THE CUSTOMER Clarify customer complaints before inspection. First of all, perform an interview utilizing BRC-146, "Diagnostic Work Sheet" and reproduce the symptom as well as fully understand it. Ask customer about his/her complaints carefu ...