When should you change PCV valve?
Replacement is considered a maintenance item, so it’s important to replace the valve regularly. Some manufacturers recommend replacement as often as every thirty thousand miles.
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.
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.
What are the symptoms of a bad PCV valve?
7 Symptoms of a Bad PCV Valve. 1 Check Engine Light. 2 High Idle RPM/Rough Idle. 3 Lean/Rich Mixture. 4 Misfires. 5 Rough Acceleration. 6 Increased Oil Consumption & Oil Leaks. 7 White/Black/Blue Smoke from the Exhaust.
How do you test a PCV valve on a car?
The only way to determine whether the PCV valve is operating as it should is to test it. The process is very simple. Once you’ve located the valve at the top of the engine, detach the vacuum hose and remove the valve. Either unscrew it or pull the rubber housing off the valve.
Can a bad PCV valve cause your car to smoke?
Joined: Dec 9, 2004. Location: Tallahassee. Yes a bad PCV valve will make your car smoke. The valve guide is basically what the valve goes through in the head to control oil and it acts as a bushing.
When to replace the PCV valve in your car?
However, if the valve rattles; and your engine is experiencing one or more of the bad PCV valve symptoms described above; it’s a good idea to replace the valve. Besides visually inspecting the condition of the PCV valve and related components; you should also, test the system during engine operation.
How often should a crankcase ventilation ( PCV ) valve be changed?
Regular maintenance will help provide a longer use life, while neglecting your regular oil changes will shorten it. Ideally, the PCV valve should be changed with every major scheduled service (30, 60, 90K, etc.). However, it’s possible that the valve will fail in between services.