Battery???

i have a 94 probe and when i have my heat or my air on my volts drop really low and my rmps drop really close to 0 then my car starts to bog this happends when i come to a complete stop and when i start to go again the volts go up and i am fine. and sometimes when i stop the rms drop with the volts with out the air on or heat can some one help me i dont know what to do



Thanks
Harry

sounds like your going to need an alternator a good way to test it is to start the car disconect the battery if it still runs buy a battery if it dies buy an alternator

sounds like your going to need an alternator a good way to test it is to start the car disconect the battery if it still runs buy a battery if it dies buy an alternator

Yes, check your alternator, if it aint that its your battery.