So my car has been eating coolant for lately, and I can see it seeping out from around the intake manifold gasket. This is a model notorious for intake manifold issues. The leaks have been getting faster, and I need to address the issue soon. My parents have always leased cars, so when I got an older car with more than 50,000 (85k to be precise) miles I was kind of breaking the mold. I've only ever done basic maintenance myself. I've read the step-by-step on how to install a new upper intake manifold on this particular engine, I'm armed with the tools for the job, and I'm reasonably confident. I think I can do it. If I start on a Friday night I could spend the whole weekend on it if necessary. The $1000 or so to have it done professionally certainly wouldn't break any banks, but I feel I could do it for the cost of the part ($150), learn something and get more comfortable under the hood along the way. I'm good with my hands and have been taking things apart (and putting them back together with moderate success) since I was a little kid. My car-ignorant upper-middle class suburbanite family and friends think I'm insane. Am I?