October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Symptom Checks

Check the following items:

Check PCV system. See CIRCUIT TEST HG in TESTS W/CODES - 3.4L article.
Check engine mechanical condition. Check valves, valve guides, valve stem oil seals, intake manifold gaskets, cylinder head oil drain passages and piston rings.