Just bought a 1999 buick regal 3800 it leaks coolant when first start, under engine not sure sure if is coming from the recovery tank or water pump. Not overheating yet. What can I do to check?
Check behind the alternator, above the water pump. Often there are undetected leaks in the necks there that a ton of people don't even know exist. Invest in a good thick book on your car. A Chassis manual is usually about $10 on eBay, but worth so much more in my opinion.