Ford Windstar problems

Hi...Ok my van was running fine all day today, havent had any problems lately, except my inside lights not coming on , and then coming on....But tonight left and turned the corner, and turn signal stayed on...didnt turn off , couldnt turn it off either, light dimmed a little , and then returned it home. Shut it off and try to start it again and it just went click click click, could this be a battery problem or alternator? the radio worked fine and then after shutting it off, interal lights came on and wouldnt go off?:uhoh:

Hi...Ok my van was running fine all day today, havent had any problems lately, except my inside lights not coming on , and then coming on....But tonight left and turned the corner, and turn signal stayed on...didnt turn off , couldnt turn it off either, light dimmed a little , and then returned it home. Shut it off and try to start it again and it just went click click click, could this be a battery problem or alternator? the radio worked fine and then after shutting it off, interal lights came on and wouldnt go off?:uhoh: Your battery is probably discharged and this is probably cause by a defect alternator. I have got this problem a few weeks ago and while I was driving ( it was during the day) I have noticed that the heater fan seem to run very slowly following by weird things like you have mentioned, flasher unit doesn't stop, dome light on and off etc. In fact my alternator was not charging any more and as the voltage in the battery dropped lower than 12 volts I think that the power module and the Front electrical module start sending wrong informations to the differents system,
light, flasher, radio etc. This was a little bit confusing as the battery warning light in the dash never came on to indicate that failure but the alternator was really wrong.
Anyway you can just try to recharge the battery and start the engine and test the voltage; she should have more than 13.5 volts but if you have 12 volts or less, you should have to consider a new alternator.