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just replased the fusable link up by the master cylinder, it was blown. the insulation was still good but fellapart when i touched it. gen 2 light comes on and i am charging. thank you for all the help.

ok Warthog you just said the evil f-word (fusable link). i have never had a pre90's chevy that i did not have a fusable link blow on me, mostly the main power wires. i will check those in the daylight. so this brings me to a thought i had when i first got the truck. cut out the fusable like...

i get 12v on the driverside on red and on brown with key on. i get 24v on the passengerside on red and on brown with key on. if i use a volt metter going from batt to alt i get 24v and if i go from alt to batt i get 24v. but if i dirve the truck all day, the front batt (12v) alwas has a full...

yes, i got 12v won the driverside and 24v on the passengerside. i swaped the gen 1 bulb with the gen 2 and i still dont have a gen 2 light. i alsow swaped the gen 2 relay with the volt gauge relay. still nothing. gen 2 test good off the truck. im about ready to pay som one to fix it for...

ok, i had a shop check my gen 2 diode, and its good. so i am thinking that it my be a bad ground at the relay???????? or the printed circit on the back of my dash cluster?????any thoughts on this?

verry bottom of your fuse box. it is a 10 amp fuse.

when testing the gen 2 diode what should my metter read?

fuse is good and so is the relay for gen 2, and the volt gauge.

i have had the alt tested off the truck at on of the shops in town, it tested good.

gen 2 tested good off the truck. brought it to a shop for testing. im woundering if it could be the diode for gen 2?:lost:

i followed the post step by step.

voltage is 12v on the driverside and 24 volt on the passenger side. 24v fuse is there and good. the new alt is just there for a quike fix till i can aford a rebuild on the old alt. if it helps any my volt gauge is getting 24v to it.

gen 2 light dose not come on at all, the bulb is good. with a volt metter i am getting 27v on alt 2.but my back battery seems not to be charging. i did check the gen 2 relay and it is good.

i am still trying to learn how this 24v 12v system works, so please for give this question. i have been having some start problems with my m1028. i have had to replace both batterys. the one by the fire wall was bad, so i just replaced the pair. ran fine for a few weeks. started geting harder...