Q: Auto Zone said the case regulator vail is bad. What is that?

asked by on

the engine light came on, took it tot auto zone and they said the case regulator vail is bad? help please

If you are referring to the crankcase pressure regulator valve (CPRV), that valve is a part of your car engine’s crankcase ventilation or breather system. A common application is on Audi models. If you have an Audi please note that in 2014, Audi agreed to reimburse owners of certain vehicles from the 2009-2010 model years, including the Audi A4 and Audi A5, and the 2011 Audi A4, Audi A5, and Audi Q5 models with the engine code of CAEB for replacement of the CPR valve and other components such as seals. In 2015, there was also an Audi service campaign involving this valve on Audi vehicles with the 2.0L TFSI engine. If you are referring to a different engine component (i.e., a part other than the CRPV), please write back in with the Diagnostic Trouble Code that you were given as well as the year, make and model of your car, and any malfunction symptoms that you are observing. If you have an Audi and the trouble code you were given does refer specifically to the crankcase pressure regulator valve, an alternative for you is to simply set up a Check Engine Light Diagnostic now with a certified mechanic from YourMechanic and he or she will diagnose whatever codes are being reported and advise you as to what repairs are needed. This diagnostic can be done on a mobile basis right at your home as the mechanic will travel to your location. The Mechanic can, of course, effect the necessary repairs, too, once the diagnostic is complete and the malfunction is identified.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Auto Zone said the case regulator vail is bad. What is that?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: PCV Vales

There is one PCV valve and two hoses on your engine. If the engine oil has been changed regularly, the valve is typically trouble free. You can test the valve operation to some extent by pinching off vacuum to it...

Q: how long can it take to change valve cover gaskets on 2003 Lincoln aviator 4.6litre

Hi there. The book time calls for approximately 3.5 hours to complete the replacement of both valve cover gaskets. But this will vary by mechanic, but this is the average book time. If you need to have them replaced, consider...

Q: Does this car have a PCV valve?

All cars that have internal combustion engines have Positive Crankcase Ventilation (PCV) valves. On your car, the PCV valve is at the top of the engine in the valve cover. It is pressed into a rubber grommet. You will see...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...