The positive crankcase ventilation or PCV valve plays an important role in the emissions system of a pollution-controlled vehicle. If positive pressure builds up inside an engine (the crankcase) it is vented through the PCV valve into the engine intake. This allows any unburned hydrocarbons to be burned instead of being released into the air.
Things You'll Need
- Replacement PCV valve
Find the PCV valve, which is installed on the front-right of the engine (while facing the car). It has a black rubber hose running to it.
Grip the PCV valve and the hose attached to it and pull straight up to remove the old valve from the engine.
Pull the black rubber hose from the PCV valve by pulling it off the valve. Dispose of the old valve.
Slip the black rubber tubing onto the new PCV valve and press it back into the engine in the same location and manner it was removed.
Tips & Warnings
- If the vacuum hose is difficult to remove from the PCV valve, twist it on the PCV valve barbed fitting. Once the hose turns easily on the PCV fitting, it will be easy to remove it from the PCV valve.
- To determine if your PCV valve requires replacement, remove it using the instructions in this article. Once removed, shake it in your hand. If you hear a rattle, the valve does not require replacement. If the valve does not rattle, the valve is stuck and should be replaced.
- To make locating the PCV valve easier, use the replacement PCV valve as an example of what it looks like.
- Inspect the vacuum hose running to the PCV valve. If it is cracked or has a hole in it, replace it while replacing the PCV valve.
2.7 Chrysler V-6 Oiling Problems
When Dodge introduced the all-new, all-aluminum 2.7L V6 as the base engine for it's top-selling Intrepid, the initial reception was quite positive....
Where Is the PCV Valve on a 2000 Chevrolet S10?
The PCV valve an a 2000 Chevrolet S10 is seated in a small hole on the valve cover of the engine. There...
How to Remove a PCV Valve
A Positive Crankcase Ventilation (PCV) valve is a useful device that is one of the oldest emission control components in most vehicles....
How to Change a PCV Valve on a Chevy Impala
The positive crankcase ventilation valve (PCV valve) on a Chevy Impala is generally located on the engine block. The exact location may...
How to Connect a Hose to PVC
If you have a PVC water pipe in your yard for connecting a stream pump or a rain barrel to your garden...
How to Replace a PCV Valve on an Escalade
The positive crankcase ventilation valve commonly referred to as the PVC valve, is a critical component within your Escalade. The PCV valve...
How to Replace a Mustang PCV Valve
The positive crankcase ventilation valve's role in engine emissions is to draw metered amounts of air and unburned gases from the crankcase...
How to Replace the PCV Valve in a Northstar
The Positive Crankcase Ventilation (PCV) valve of the Northstar engine is designed to help remove the gases from inside the intake manifold...
How to Replace the Rear Valve Cover Gasket in a Maxima 3.5
A 3.5 engine in a Maxima is side mounted and the valve cover is on the upper rear side of the engine...
How to Replace a 300M Purge Valve
Produced from 1999 through 2004, the Chrysler 300M represents the ninth generation of the full-size "300" vehicle series. All Chrysler 300M vehicles...