I've been chasing a possible vacuum leak in my 2007 CS. It has 227k miles on it. In doing so I found oil leaking from a connection that is in the oil fill pipe. Took it apart and found that the o-ring was pretty tired. I ordered a new one but now I'm wondering how many more o-rings are there that could be a possible vacuum leak just because of the age of the car. Any thoughts ?
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Can of worms man. If you're looking for a vacuum leak, there's 2 basic ways to find them. One is a smoke test and the other (quick and dirty) is to take a can of starter fluid and spray it around the connections with the motor running. If you hear an acceleration in RPM, there's your leak.
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