I have a 92 blazer and there isn't a power distribution box in the engine compartment. You may have to check power comming to the fuse box itself. The are probably a couple of slots labeled "batt" or "battery" check those with a volt meter. If you used the little kit you get at Wal-Mart, chain auto stores, etc., all you are checking is the fuse is good -- not if power is getting to it. Take it to a qualified mechanic and check for a parasitic draw (or key off draw)
you will need to check fuseable link from battery
check your fuses could possibly be a fuseable link by the starter
unhook battery or scan tool will do it
usually on the rear lower end of engine--follow + battery cable
wiil a 1999 blazer engine fit a 2002 blazer
Check fuseable link on alternator Check fuseable link on alternator
Had the same problem on two occasions with my 99 Blazer...sounds as though your alternator is going bad. The car will run good while the battery is charged up, but as the battery wears down, the engine will run poorly and the gauges will operate erratically. Eventually, the battery will not have enough energy to allow the engine to run, and it will stall.
Fix the cause of the codes, and clear the codes with a scanner or by unhooking the battery.
Group size 75 CCA 650
Disconnect the negative battery cable from the battery, remove the two bolts from the starter, drop the starter enough to disconnect the wires from it and remove the starter from the engine.
Discconect the negative cable from the battery for a few minutes and that should do the trick
Like an electric motor--usually located at the lower rear end of the engine--follow the + battery cable