I have a 1997 Avalon with 150000 miles.
the dealer noticed some oil around the valve cover and suggested repair. I have not noticed any oil spillage. Does this need repair? What is the time unit for such a repair. Thanks
There is no real set mileage on the replacement of valve cover gaskets, it really has to do with condition. Usually valve cover leaks start with a seep from the cover, oil runs down the side of the block and you may never see a visible leak where you park. It usually takes no more than an hour and a half for replacement.
If you are planning on keeping this vehicle for a long time, the repair may not be a bad idea. The problem will definitely not get better, and actually, will most likely eventually get worse. If you plan on only keeping the car for another year or so, I might suggest you let it go, but PLEASE keep an eye on your oil level. Checking your oil level at least once a week and always before long trips is a good idea. Also, be aware of any puddles under the vehicle where it is parked. Good luck.
〉 Answered on Jan 22nd, 2008 by Suzanne Grego, Technician at City of Philadelphia Fleet Management