[jsbihn]

Igor,
I am wondering if when you had your tranny replaced did you have the oil pump for the tranny replaced.
As I mentioned in NYC's post it could be the pump... could have been the whole time.
Also, I would think that if you have disconnected your battery and the truck runs and cycles thats good. Maybe your Alt isnt as strong as it should be and it pulls a little from the battery (which I have heard that this is really the case in the H2), so if so I would think that the electricals would start to cycle on and off without the battery because the Alt isnt making the juice it needs to.

(again this is a common thing from what i heard. the alt is under-powered and it will suck from the battery, so of course another reason why alot of people with extra lights, extra electronics or stereo systems go through lots of batteries.)

hope this helps