Checking and replacing the crankcase ventilation spool

1. The crankcase ventilation spool is located in the cylinder head cover.

2. With the engine warm and idling, remove the spool together with the hose from the cover on the cylinder head cover (see photo).



3. Plug the hole in the spool with your finger. If vacuum is not felt, then check the cleanliness of the hose, the holes in the manifold, or the spool itself. Replace contaminated or failed part.
4. Stop the engine and shake the spool. If the knock is not heard, then replace the spool. To do this, disconnect the hose and put it on a new spool. When purchasing a spool, it should be taken into account that the new spool exactly matches the make of the car and engine (compare the new spool with the one being replaced).

5. Check the condition of the spool rubber boot. If tears or hardening are found, replace the cover.

6. Insert the spool with the hose into place.