How to Fit a PCV Filter on a Nissan

Written by skip shelton Google
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How to Fit a PCV Filter on a Nissan
The same vacuum that draws air into the intake manifold is used by the PCV valve. (intake hose image by Five Arrows from Fotolia.com)

The Positive Crankcase Ventilation valve, or PCV valve, is designed to pull harmful vapours from the crankcase into the intake. The vacuum created by your Nissan's intake during the combustion process pulls the vapours from the crankcase through the vacuum hose and into the PCV valve. By doing so, the valve essentially acts as a filter to remove harmful vapours from the crankcase.

Skill level:
Easy

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Things you need

  • PCV valve
  • Deep socket set
  • Socket extension
  • Socket wrench
  • Socket u-joint
  • Pliers

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Instructions

  1. 1

    Locate the PCV valve on your Nissan. The PCV valve is located toward the firewall on the driver's side of the engine compartment. The PCV valve will be attached to the intake plenum.

  2. 2

    Disconnect the bracket over the PCV valve, if your engine is equipped with one. The bracket will have two 10mm bolts.

  3. 3

    Remove the vacuum hose from the PCV valve. Using pliers, squeeze the clamp securing the hose to the PCV valve, and slide up the hose away from the valve. Pull the hose away from the PCV valve.

  4. 4

    Unscrew the PCV Valve from the intake plenum. If the PCV valve is stuck or inaccessible, use the 19mm deep socket, extension, and u-joint to unscrew the PCV valve from the intake plenum.

  5. 5

    Insert the new PCV valve, and tighten until secure. Reconnect the vacuum hose and clamp. Reconnect the bracket if removed.

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