What should I do if my Volvo PCV is clogged?
You’ll then want to detach the hose from the Idle Air Control Valve, the silver cylindrical thing up near the manifold. That should cover all hoses that need to be removed. Next, you’ll want to unbolt the dipstick tube from the manifold.
Where is the PCV valve located on a 5.0 liter engine?
You will notice that there will be a vacuum tube attached to the PCV valve, that connects it to the intake manifold. To help you locate the valve, follow any vacuum tubes you see going to the valve cover. Some larger engines have the PVC valve located in behind the intake manifold. Engines that are 5.0 liter or more are usually configured this way.
What are the symptoms of a broken PCV valve?
High Idle RPM/Rough Idle Because the PCV valve is controlling the air flow between the crankcase and the intake manifold, a broken PCV valve can have the same symptoms as an intake air leak which can cause the idle RPM to get too high and other strange idle behaviours like very rough idle.
When do you need to replace the PCV valve?
There is no fixed interval of when you should replace the PCV valve. However, because the PCV valve is often made of plastic and as you may know – plastic age. Especially because the PCV valve is often mounted in hot places inside the engine bay and because there are passing a lot of fuel/ oil inside the hose at all the time.
How can I tell if my Volvo S60 has PCV?
Also, check the oil suction strainer on the oil suction line for contaminants and deposits. Use a low caliber vacuum gauge to check for positive pressure through the dipstick tube. Here’s a nice write up for 1999+ Volvo 5-cylinder PCV System courtesy of Matthews Volvo Site. Check out the video below of a full PCV replacement on a Volvo S60.
You’ll then want to detach the hose from the Idle Air Control Valve, the silver cylindrical thing up near the manifold. That should cover all hoses that need to be removed. Next, you’ll want to unbolt the dipstick tube from the manifold.
Where is the PCV breather located in the engine?
In naturally aspirated engines, the PCV valve connects the crankcase to the intake manifold. It does this from a location nearly opposite of the breather location.
What happens if you have a clogged PCV valve?
A clogged PCV valve will not only causes sludge, but the inability to vent those obnoxious gases such as moisture, condensation, blowby, etc. will accelerate the deterioration of your otherwise still lots of life left motor oil.
Where does the oil come from in a PCV?
This is why when we were young; we would see that black strip down the highway, it was the gasses and the oil coming out of the PCV system. Beginning in the 60’s engineers began to use the vacuum in the intake system to draw the gasses out of the crankcase.