ok so im looking to buy an 03 alero with the 3.4L engine. iv been doing a lot of research and iv seen a lot of comments about the intake gaskets leaking. im sure i have the tools and knowledge to replace these gaskets if they were to fail. my problem is finding the problem before it is too late. i refuse to take my cars to a shop unless i have to becaus things "mysteriously" brake when u get your car back. any tips on what to look for would be greatly appreciated.