Engine Crankcase Breather Pipes

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What is an engine crankcase breather pipe?

An engine crankcase breather pipe is a component in an automotive emission control system that is responsible for regulating the flow of air between the crankcase and the atmosphere. It helps to keep the crankcase pressure at a safe level, reducing the potential for oil leakage and oil burnout.

What is the purpose of an engine crankcase breather pipe?

The primary purpose of an engine crankcase breather pipe is to regulate the pressure inside the engine crankcase. This helps to prevent oil from leaking out, as well as preventing oil from being burned off due to excessive pressure.

How do I know if my engine crankcase breather pipe is faulty?

If your engine crankcase breather pipe is faulty, you may notice a decrease in engine performance, increased oil consumption, or an increase in oil leaks.

Can a faulty engine crankcase breather pipe cause damage?

Yes, a faulty engine crankcase breather pipe can cause damage to the engine, including oil leakage and oil burnout.

How do I replace an engine crankcase breather pipe?

Replacing an engine crankcase breather pipe is a relatively easy job that can be done at home. Here are the steps to follow:

  1. Disconnect the negative battery cable and drain the oil.
  2. Remove the existing breather pipe.
  3. Install the new breather pipe.
  4. Refill the oil and reconnect the negative battery cable.


How often should I inspect my engine crankcase breather pipe?

It is recommended that you inspect your engine crankcase breather pipe at least once a year or every 10,000 miles, whichever comes first.