Oil and Oil Filters
Honda
Fuel Filters
Ford F-150

What causes engine oil to build up in the breather box of a 1989 Honda 2.0L?

151617

Answer

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Wiki User
11/27/2007

1) Bad PCV valve

2) Cracked or leaking PCV hose

3) Overall short driving trips averaging less than 20 minutes

4) Oil overfilled

5) Worn piston rings

6) Restricted exhaust system

7) Excessively advanced ignition timing

8) Leaking exhaust valve stem seals

9) Broken or missing thermostat (is your heat cold?)