In a few days I will be servicing the cooling system on my wifes 00 expedition with the 4.6 engine. Today I looked under it and was able to locate the drain plug for the block on the drivers side. I looked for the one on passenger side, but couldn't find it. I think it may be hiding behind the starter. Hoping someone can help me out. There are about 4 or 5 regular bolts that run along the block on passenger side that are just screwed in and not holding anything on. I don't think these are the plug to drain the block. I plan on draining the radiator and overflow reservoir, draining the block and filling back up with 50/50. Thanks for any help.