Yea I just really don't like the idea of it happening right now since I was just about to be finished with my audio system and now I get to go back in and fix something else on it. My 98 buick regal had 200K miles on it and nothing ever messed up accept for the spoiler leaking water into the trunk. No a drop of leaked oil, nothing. This car due to the previous owner has had to have a wheel replaced and it needs another. Has had 2 light bulbs replaced, trailing arms, front control arm and on of the links, the bad wheels caused a crack in my aluminum oil filter housing giving me one leek and I also have a small leak on my intake. My fuel pump assembly had to be replaced and now this. I'de imagine this would never happened if the previous owner hadn't qrecked it and in common fashion not told me about it.

How do you think I would go about diagnosing which is the culprit without buying new parts. Know of any diagrams to look at?