My # 2 alternator went bad (hard starting and dash volt gauge in the low side and "NO" #2 alt light), I had both alternator bench tested at an electric motor rebuilder place; #1 was OK and putting out 14+ volts, I had both alternators rebuilt to new specs: Delco #1100500 -12v. with isolated ground #2 alternator with NEW brushes, bearings, regulator and rectifier and just to be shure (since I last had the #1 alternator rebuilt in '04 when I first purchase the truck with a bad front 6TL batterie) I had the #1 rebuilt, he ended replasing the brushes, bearings, regulator & ROTOR(?) the rebuider said that the volts started going up and down. My #2 batterie was dead. so I took both batteries out added destiled water and slowly charged over night with a automatic Schumaker charger 2-8-12 amp from Walmart since I was going to rotated the batteries anyway. Both batteries purchased in August '04 at Walmart's = MAXX-1N 1000ca and 875cca, I had also installed a 24v. Solargizer mantainer IS-24-L 735x150 (Neg - to front and Poss + to rear batterie as told by the Solargizer tech advisor) After chargind both batteries and checking the individual cells ( OK = 1245 or better with a gravity tester) Figured it was a good time to replase the accesorie belts & clean all connections: cables, grounds, GP relay, GP conectors, coolant temp, glow plug temp sensor (needs to be replased, the wait light come on even after running at normal temp.) the rear most glow plug on both driver and passenger sides were bad yet again this is the 3rd. time that I've had problems with the same possition glow plugs: the original AC13g, the second set of Wellmans G070 and now their AC13g replasements the passenger side rear most glow plug is a bit cross treated but I can screw it by hand 1 or 2 turns before having to use a socket. I have 14.47 at batterie terminal on #1 alternator 14.49 v. at #2 alternator ground coming from #1 (with the condenser), and 28-29 v. at #2 alternator that goes to 2nd. possitive lug on the terminal board. Today it was in the low 50* and she started first try but after a 30 miles ride I notice that I had fuid (Acid) around both batteries, I check the voltage on both batteries runing about 14.47v and not runing 13.1 front and 12.92 rear and that is when I notice that the rear GP are bad again. forget to mention the GP relay(solenoid) simens to be working OK, but it stays on for a bit to long after the truck is running (1 minute or 2), the voltage gauge is at the upper end of the green scale after the wait cycle is over. I also have the correct voltage at the input and output side of the resistor as well as at the GP relay before and after the cycle. I am not shure what else to look for. You advise would be welcome, thanks before hand.
Last edited: