What happens when you have a bad PCV valve?
Check Engine Light A very common problem when it comes to a faulty PCV valve on modern cars is that the check engine light is starting to flash on your dashboard. When the engine light is showing up, there is a trouble code stored in the engine control module.
Can a PCV valve be installed without an engine?
Some older cars with a PCV valve fitted without an electronically controlled engine will not have this symptom.
How much does it cost to replace a PCV valve?
Some cars do also have an integrated PCV valve with the valve cover. The average PCV valve replacement cost is between $50 to $250, depending on the car model and labor costs. A PCV Valve mostly costs between 20-50$. The labor cost is between 30$ to 200$ at a mechanic workshop.
Why do I get blue smoke from my PCV valve?
White/Black/Blue Smoke from the Exhaust If the PCV valve or the hoses are blocked, the crankcase will push up oil into the combustion chambers, which will cause oil to burn inside the engine and go out through the exhaust pipe. This will cause a lot of blue smoke from the exhaust pipe.
Check Engine Light A very common problem when it comes to a faulty PCV valve on modern cars is that the check engine light is starting to flash on your dashboard. When the engine light is showing up, there is a trouble code stored in the engine control module.
Some older cars with a PCV valve fitted without an electronically controlled engine will not have this symptom.
How long does it take to replace a PCV valve?
Overall, if you have an older car, the PCV valves are often easy to replace and should only take around 10 minutes, while on newer cars, there could be a replacement time of over 3 hours if it’s located under the intake. Sometimes, you have to remove the intake to access the PCV valve; luckily, this is not that common.
White/Black/Blue Smoke from the Exhaust If the PCV valve or the hoses are blocked, the crankcase will push up oil into the combustion chambers, which will cause oil to burn inside the engine and go out through the exhaust pipe. This will cause a lot of blue smoke from the exhaust pipe.