Schematic Diagram |
Inspection |
1. |
After disconnecting the vapor hose from the PCV valve, remove the PCV valve. |
2. |
Reconnect the PCV valve to the vapor hose. |
3. |
Run the engine at idle, and put a finger on the open end of the PCV valve and make sure that intake manifold vacuum can be felt.
|
4. |
If the vacuum is not felt, clean or replace the vapor hose. |