Please some one help me, I have an 88 Trooper with 4ZE1 motor, recently the vehicle started trying to start hard like the battery was getting low, I figured my battery was dying due to it being 5-6 years old, the other day it got to the point it just wouldn't turn over, even with tapping the starter. So I had a buddy bring an extra battery to put in it that was good, still no start, so i grabbed a spare parts starter i had from a parts vehicle, and purchased a new battery, everything seemed to work great for two days, it then started doing the same thing yesterday, hard start and had to tap the starter to get it to turn over, now today it is completely dead, I have taken the battery back to NAPA and they checked it and said it was totally fine, just needed a charge, they charged it for me and i brought it back, now trying both starters hard wired to the battery, they work, but very weakly, I doubt enough to turn the motor at all. Now I have come to few conclusions I have come to about my situation and i need professional advice on which might be the real case. 1 I just had real bad luck and both starters were bad and drained the battery, not my strongest suspicion. 2 My alternator is shorting out and frying the starters and draining my battery, this is my biggest suspicion. 3 I have an electrical short somewhere in my wiring but i don't know how this would fry my starters. Please some one help me figure this out so i dont have to buy a bunch of stuff that isn't neccesary.