battery light staying on

[vn2env]

Oks. Last few days, I notice the battery light on dash keeps going on and off. I didn't think much of it till the
battery went dead flat. GREAT!! Time for a new battery got one put in and notice the neg lead was a bit
had it replaced with a new one with two new battery clamps. RIGHT ALL GOODS, Started it up and now its
still on. Had it going for 2 mins turn off looked under the hood , I had my hand on the alternator and it
really hot as as i have no idea??

 

[Clutchy]

The alternator has had it that's why the light is still on as the battery ain't getting any charge so if you keep driving it will just kill ya new battery.

New idea check all the wires from the alternator are still connected and in 1 piece.

 

[m1lky]

Check the voltage at the battery with the car idling. Should be more than 13.5v

 

[VPRob]

alternator noisy? bearing failed possibly making it hot? or an electrical prob. Shouldn't be that hot esp after only 2 minutes running.

 

[hi_ryder]

most of the time the battery light will either be a broken connection on the fuseable link (2 inch brown wire coming off the positive terminal with a black plug on the end)

or your alternator is playing up. check the voltage coming off it like milky said. i dont know why it would be getting hot but the voltage regulators commonly fail on them. its the little unit with the plug on it and 2 screws holding it to the alternator. the brushes get short, lose connection and produce no power, causing your car to run off the battery which eventually dies.... if the bearing has failed might be better to get a second hander and just chuck a new voltage reg in it for 50 bucks...

 

[Westie]

Could just be a new reg for the alternator (about 60-70$) RE60 is the part number thru repco etc.
Or could be a bad earth.

 

[vn2env]

Ive checked all leads to battery and alternator they are all good. As for the 2inch borwn wire thats fine as. Today i'm taking
alternator off and checking the regulator and see what what its like But i have not given up hope yet

 

[vn2env]

A big thanks to everyone that put up answers, It wos the alternator after all!! All pulled
apart with new bearing, and new Regulator... ( Running good as gold )

 

[FXST01]

A good result and another satisfied customer. Good to see some follow up when problems are solved.