Skip the auto shop - Our mechanics make house calls

Q: Would a bad pcv valve make the engine run hot

asked by on

I know I have a bad pcv valve I have got the problem diagnosis, but does it make the car run low on water and make the engine run hot

My car has 159000 miles.
My car has an automatic transmission.

Hi there. From the description you have provided, your vehicle’s bad PCV and coolant loss are not related. The PCV (positive crankcase ventilation) valve is designed to remove combustion gases that get past the piston rings into the engine. Typically, a bad PCV valve leaks or plugs, replacement is recommended. The coolant/antifreeze loss, is a leak in the engine’s cooling system that requires repair sooner than later. Any number of components in the cooling system could be leaking, ie; water pump, radiator, cooling system hoses. A cooling system pressure test could confirm the area of the leak. Overheating the engine could result in a catastrophic and expensive failure. I recommend having your vehicle’s bad PCV valve and engine runs hot be diagnosed and repaired by a certified technician, such as one from YourMechanic.

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. Would a bad pcv valve make the engine run hot

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: Car doesn't like to start

The first thing to do is to charge and have battery tested and alternator tested to see if it is recharging the battery. If both the battery and charging system check out okay then you will need to have the...

Q: How do I use the Instantaneous Fuel Economy setting?

The driver information center (DIC) provides a large amount of information to the driver. At any time, you can select what information you would like the DIC to display. To select the Instantaneous Fuel Economy setting, press the Menu button...

Q: Engine blocked when turning it by hand

Hi there. On virtually all modern engines, compression tends to be the major reason why an engine won't rotate by hand. Especially if you've not removed the spark plugs. This is a common mistake, but the best thing to...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.