Anyone out there have valve cover issues? (07 base model 60K miles) Mine keep leaking, just replaced for the 3rd time in about 3 years (luckily under warranty thus far). When the CF is stored, and comes out of hibernation for the first time, residue burns, smokes and comes out from under the hood, not heavy, pretty light but noticeable mostly from the drivers side or least that is what I see most. The breather covers were redone one time, but the valve cover gaskets 3 times?? Any suggestions to consider, my warranty runs out in about a year. Thanks a mil!