2006 nissian maxima 3.5
I replaced the injectors and coil packs and that fixed the skipping but now I have a water leak and ive been told its the water pump by one guy then i was told its the freeze plugs and then i was told it is a hose the problem is u can't see where the leak is coming from unless u take some **** apart its pouring water at this point when I stop

Water coming from beyond the oil pan

 

Water/coolant leaking behind the ac compressor on 95+ maximas = water pump seals going bad.

Depending on the year its a 3.5-4hr job. I would take it to a TRUSTWORTHY shop and let them fight with it.

In reality its an 8-10hr job because it never goes right.

Or just pull the motor and give it a good overhaul (my recommendation).