Skip the auto shop - Our mechanics make house calls

Q: oil is entering through throttle body and smoking from exhaust after pcv valve

asked by on

Replaced pcv valve and oil is going through throttle body and exiting through exhaust, resulting in lost of oil and causing white smoke to emit from tail pipe.

A: Hello there, a few different faults can cau...

Hello there, a few different faults can cause oil to be burned and white smoke to be seen. The most common would be excessive blow by, an intake leak, failed PCV valve or valve stem seal.

A qualified technician such as one from YourMechanic will be able to diagnose the cause of the white smoke and perform any repairs required.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car won't start after doing valve cover job.

Hi there. From the description you have provided, something was reassembled incorrectly. Not replacing the upper intake (plenum) gaskets should not have caused the vehicle's no start condition. Once that you have the plenum removed, carefully inspect all the components...

Q: A/C quit and won't turn on

Generally in this case it is either the blower motor or the blower resistor that has failed. The blower motor failing is a common issue. It can be replaced but the repair can be tricky. You may want to enlist...

Q: AC not working

An AC compressor not engaging is usually the result of one of four different reasons. The A/C belt has broken There is no electrical power to the A/C compressor Third there is low or no refrigerant in the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...