Top 11 Symptoms of Bad PCV Valve

What is a PCV Valve?
The PCV valve expels undesirable exhaust gases from the crankcase and recirculates them through the intake manifold to the combustion chamber. These exhaust gases then burn in the combustion chamber instead of going into the environment through the exhaust system.

Bad PCV Valve Symptoms
1) Check Engine Light
2) Smoke from the Exhaust Pipe
3) Lean/Rich Mixture
4) High Idle RPM/Rough Idle
5) Rough Acceleration
6) Poor Oil Economy
7) Engine Misfiring
8) Contaminated filter
9) Engine Stalling
10) Unusual Engine Noises
11) Sludge Accumulation

Disclaimer:
This video is just for educational purposes only. We are not in the auto repair business nor publish automotive service manuals. This video is not reviewed or authorized by any vehicle manufacturer. This video is intended only as general guidance. Every system is slightly different, so refer to the owner’s manual of your vehicle for any specific information about your model. Remember that only proper service and repair procedures will ensure your car's safe and reliable operation.

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