Skip the auto shop - Our mechanics make house calls

Q: Can i drive long distance with bad pcv valve

asked by on

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?

Need advice from certified mechanic? Get help now!

Over 1000 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. Can i drive long distance with bad pcv valve

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: 2013 Chevy Cruze

To pinpoint and resolve the fault, the vehicle will have to be inspected. If you request a check engine light diagnostic a certified mechanic from YourMechanic would use a code scanner to retrieve the diagnostic trouble code(s) from your car's...

Q: No pressure on clutch pedal

The clutch hydraulic system would have to be checked first, to make sure it is moving the clutch pressure plate. If it is working properly, then your clutch pressure plate has a problem, and the transmission would need to come...

Q: 2011 Prius. Check hybrid system. Car still turns on. Just very little power. Barely get to 45 mph.

Hi there. Virtually every system on a Hybrid is computer controlled or monitored, which means that the best way to diagnose this problem is to have a professional mobile mechanic complete a warning light inspection. When that orange triangle is...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.