Nissan Maxima Service and Repair Manual: Positive crankcase ventilation

Description

Nissan Maxima. Description

This system returns blow-by gas to the intake manifold.

The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake manifold.

During partial throttle operation of the engine, the intake manifold sucks the blow-by gas via the PCV valve.

Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.

The ventilating air is drawn from the air inlet tubes into the crankcase. In this process the air passes via the hose connecting air inlet tubes to rocker cover.

Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow via the valve.

The flow goes via the hose connection in the reverse direction.

On vehicles with an excessively high blow-by, the valve does not meet the requirement. This is because some of the flow will go via the hose connection to the air inlet tubes under all conditions.

Nissan Maxima. Description

Component 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 via the it.

A strong vacuum should be felt immediately when a finger is placed over valve inlet.

Nissan Maxima. CHECK PCV VALVE

    On board refueling vapor recovery (ORVR)
    Description From the beginning of refueling, the air and vapor inside the fuel tank go via the refueling EVAP vapor cut valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by ...

    Refrigerant pressure sensor
    Description The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an electrostatic volume pressure transducer to convert refrigerant pressur ...

    Other materials:

    P0132, P0152 A/F sensor 1
    Description The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sensor. The sensor element of the A/F sensor 1 is composed an electrode layer, which transports ions. It has a heater in the element. The sensor is capable of precise measurement = 1, but also in the lean ...

    Rear combination lamp
    Exploded View Slide clip Grommets Rear combination lamp Removal and Installation REAR COMBINATION LAMP Removal Remove the trunk side finisher. Refer to INT-36, "Exploded View". Remove the rear combination lamp nuts. Pull the rear combination lamp toward the rear of the vehic ...

    SRS air bag system
    "AIR BAG" Warning Lamp Does Not Turn Off DIAGNOSTIC PROCEDURE 1.CHECK CONDITION OF AIR BAG MODULE Inspect for any deployed air bag modules or seat belt pre-tensioners. 2.CHECK THE AIR BAG FUSE Check 10A fuse [No. 2, located in the fuse block (J/B)]. 3.CHECK AIR BAG FUSE AGAIN Replace 10A fuse ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2026 Copyright www.nimainfo.com
    0.0071