Q: Can i drive long distance with bad pcv valve

asked by on May 17, 2017

Can I drive long distance with a bad pcv valve? (12 hours) it's making a wistle noise after,the car warms up and has a rough idle if the heat isn't on.

My car has 139000 miles.
My car has an automatic transmission.

Hi there. 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. The Positive Crankcase Ventilation (PCV) valve is responsible for transferring excess gas from inside the crankcase into the intake manifold, where the gas can be used as fuel. 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. It’s probably a very good idea to have this component replaced before making your long road trip. One of our mobile mechanics can come to you to complete this if you wish.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

Problems with shifting.

Transmissions can be totally destroyed inside and not shift or it could be something simple such as a speed sensor if reading erratic. The only way to tell is to have the system thoroughly checked by a certified transmission technician,...

My honda civic 2008's car AC stopped working and is creating rattling sound. when inspected by a mechanic, it said he need to repl

Hi there. The items you've listed including the condenser and compressor themselves are typically installed by local mechanic shops for $500 to $700 individually. So, the estimate you've listed for all of that service seems rather fair. As long as...

What would you consider as a tune up?

A car is a mechanical device that wears out in a predictable pattern. Therefore, tune-ups are NOT determined by personal predilection. If someone tells you, "In my opinion, a tune up consists of....", run for the exits! In other words,...

Related articles

A Buyer’s Guide to the 2011 Ford Ranger
The The 2011 Ford Ranger offers affordable pricing with excellent styling. It is a compact pickup that is both inexpensive to operate and own. The vehicle is capable of going off-road while still being able to tow 1,600 to 3,100...
The 5 Safest Used Cars You Can Buy For Under $20,000
The Subaru Legacy, Honda Accord, Ford Fusion, Chevy Volt, and the Volvo XC60 are five of the overall safest used cars you can buy for under $20,000.
A Buyer’s Guide to the 2011 Lexus LX 570
Despite Despite pressure on the automobile industry to produce more – and better – fuel-stingy options for the mass market, there remains a place for luxury SUVs that are neither size conscious nor gas conserving. The 570 stands firmly in...