oil on spark plug
- Thread starter wyhaz
- Start date
- Location
- Covington, Va
On the insulator (white) part?
yes
- Location
- Covington, Va
Your spark plug tube seals are bad. On the VQ40, you have to replace the entire valve cover.
Do both sides and the PCV cross-over hose between the covers while you're in there. There's a few write-ups on it here.
Do both sides and the PCV cross-over hose between the covers while you're in there. There's a few write-ups on it here.