Hi all im new just got my first 1976 cutlass supreme and im having a little problem with the charging system...At idle my gen light is off but when i start driving and i press the gas pedal the Gen light starts to come on and the more i go down on the gas the brighter the light is!! Any ideas?? i have an after market power master alternator and a brand new battery..

 

I was going to tell you to check your alternator and voltage regulator but I bet that new alternator has a built in regulator. It still might be a good idea to double check it. Welcome to CO.

 

Ya i dont get it i ended up buying a new battery and installing it and on my way to work the battery ended up dying i lost my blinkers and etc. the thing i dont get is my Gen light wasnt on the whole way up it started up fine this mourning i took a screw driver and touched the back of the Alt and it was a strong pull so i kno the Alt is workin its not charging the battery maybe a bad ground?? I pulled a mutimeter the other day and the alt was sending out around 13.58 volts I dont kno what else to check

 

Also would it be possible to run a wire from the back of the alternator striaght to the positive ternimal on the battery for a quick fix just to get home??

 

Sounds like your alternator belt is loose or slipping. As RPMs increase, centrifugal force causes the belt to grow and slip. Try tightening the belt or checking for a glazed pulley.