Although I didn't see it happen the Gen light came on for the first time yesterday while I was driving on a 10 mile trip home. When I got home I shut it off for a few minutes and upon restarting the Gen light did not come on. I'm assuming since it came on once it will return. I'm driving a 30 mile round trip today and will update. Any input appreciated.

is this pointing to the alternator and any component / plug along the path to cause illumination of this light? If so what should I check to make sure it's not the alternator?
rr

 

Check the alternator output with the engine running. Should be @14.5 VDC. Check the belt to make sure it is not slipping. Get the battery load tested. Check/clean the terminals on the battery an alternator.

 

My light came on one time down a bumpy road, turned out to be the positive battery terminal was loose

 

The belt tentioners have been known to stick and don't keep the belt tight.

 

I tried two used alternators. the first one didn't work. a bit concerned that it could be something else I put another one in. well, the 2nd one did work. if nothing else I can change an alternator on one of these (hub also w/bearings) in approximately 20 minutes. lol.
I might add I notice less noise, more power to windows & lights, so, this alternator wasn't putting out well anyway.

thx,

rr