I too am having trouble disconnecting the clock from the harness.
Over the last two days I replaced the alternator on my 2001.5 2WD Pathfinder though, and it runs great now. My check engine light had been on since I bought it in 2008 and it is finally off! Yahoo!
I am having a hard time with the clock.
Oh and I'm a single mom.
I hear the alternator is one of the hardest to remove and replace...if you have to do it make sure to remove the plastic thingy around the fan by the radiator. It will block our efforts to squeeze out the alternator which you will want to scoot up while turning the fan blades along. hehe