Q: my valve cover leaking oil on 1997 Lexus ES300

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how much do i need to know to replace valve cover gaskets on my lexus es 300, is there a video i can watch?
(1) Answer
Purchase a repair manual at the parts store for approx $25 to $30. Or try these links:

Here are two sources for you:
For AllData:
Here's the one for Mitchell as well: