Rocky Hoffler
Platinum Member
Most of the time the alt light only comes on if alt is not charging previous post suggest to look at glow plug circuit if it has greater draw than what alt will put out it like having money in bank and wife is taking out more than you are putting in you go broke after a while. alt light should light when eng off and key is in run position most of these have a terminal on alt that runs light check and see if wire has came off of terminal.