Can I drive my car with a broken PCV valve?
Although its never recommended to drive any longer than you should with a damaged component, driving 12 hours with a damaged PCV valve could be very risky. These excesses gasses are transferred the rough the PCV valve hose. This system allows the vehicle to utilize excess gas, so that it is not wasted.
Why does my PCV valve make a hissing noise?
4. Noise from the engine. If you hear a hissing sound from the engine, it is time to get your vehicle looked at. The PCV valve hose may have a leak in it, which is causing the hissing sound.
What are the signs of a bad PCV valve?
Common signs include poor fuel economy, the Check Engine Light coming on, engine misfires while idling, and noise from the engine. 1. Poor fuel economy 2. Check Engine Light comes on 3. Misfiring while idling 4. Noise from the engine Average rating from 130,525 customers who received a Vehicle Engine Mechanical Inspection.
What causes a PCV valve to crack in a car?
However, because the PCV valve is often made of plastic and as you may know – plastic ages. Because the PCV valve is often mounted in hot places inside the engine bay and because they pass a lot of fuel/ oil inside the hose at all the time, this will cause the PCV valve or the hoses to crack up sooner or later.
What to do if your PCV valve rattles?
The former can be checked by simply looking at the arrow on the PCV valve… it should opint toward the engine’s intake. The latter possibility can be easily investigated with a simple pressure/vacuum gage. If it exists, and the rattle bothers you, things that affect this such as valve backlash, compression, and such can be investigated further.
When do you know you have a bad PCV valve?
When you encounter some misfiring with the engine, it is a sign of bad PCV. This kind of situation happens when you idle the vehicle (in most cases). The reason behind the misfiring engine is the vacuum that does not work properly because of a leak or when there is a blockage in the hose.
4. Noise from the engine. If you hear a hissing sound from the engine, it is time to get your vehicle looked at. The PCV valve hose may have a leak in it, which is causing the hissing sound.
Do a “snap back” test on your pcv with and without the check valve and see if it’s the same. That’s when I first noticed the restriction the check valve made. Its not the vacuum on your gauge that you need to be watching its vacuum in your valve cover and crankcase the engine needs.
However, because the PCV valve is often made of plastic and as you may know – plastic ages. Because the PCV valve is often mounted in hot places inside the engine bay and because they pass a lot of fuel/ oil inside the hose at all the time, this will cause the PCV valve or the hoses to crack up sooner or later.