To drive around Pasadena legally, your vehicle must comply with California Air Resources Board (CARB) emissions standards. This is so that the pollution it emits is not excessive, and our air stays as clean and breathable as possible.
One of the important parts of your emissions system is the positive crankcase ventilation, or PCV, system. This system consists of a valve on the crankcase that vents excess gas and pressure from inside the crankcase through a hose into the intake manifold, where it can be used as fuel. This system prevents the excess gas from being wasted and relieves pressure inside of the crankcase and engine.
Some common symptoms that the PCV system is malfunctioning include a check engine light, a hissing noise from the engine, loss of fuel economy, and your engine running rough or misfiring at idle. If you notice any of these symptoms, you should have your PCV system checked for leaks or faults.
Over time, due to being subjected to extreme temperatures and pressure, these parts can fail. The PCV valve itself can become clogged and will no longer be able to ventilate efficiently, or the hose can become cracked or broken, leaking gas and oil and losing the ability to suck extra pressure out of the crankcase. This can lead to several problems if it goes unaddressed for too long.
If you have a PCV system fault, we recommend that you get it fixed as soon as possible. It is important to note that PCV hoses are designed to fit a specific shape and withstand the high pressures and temperatures, so you should use the correct hose from your vehicle’s manufacturer to ensure that it functions properly.
If you neglect fixing a faulty PCV system, it can lead to serious problems for your engine. The excessive pressure can cause leaks from other gaskets or places, and you will not be able to pass a smog check. You will also be using more gas and emitting more pollution into the atmosphere, and your car will run less smoothly and efficiently.
If you suspect a problem with your PCV system, call our mechanics today at (626) 793-2220 to set up an appointment, or just bring your vehicle here to your Certified Auto Repair Specialist of Pasadena at 1280 E Walnut St, Pasadena, CA 91106. We can fix that PCV hose and make sure your vehicle stays on the road!