What do you do if the fan on a 1994 Hyundai will not stop until the battery runs dead?
you might have a faulty fan relay that is stuck closed, allowing fan to run at all times or a faulty coolant temperature sensor. the fan relay contacts have welded shut it needs replacing just pull out the relays one at a time until the fan turns of and replace it alternatively temp sender could be faulty but this is unlikely
The light is telling you that there is a problem with the charging system. You are running off the battery and will eventually get stuck with a dead battery if you continue to drive that vehicle with the battery light on. Drive to your local auto parts store and they will test the charging system for you at no cost. You are probably in need of an alternator.
I HAD THE SAME PROBLEM ON MY 1994 VANDEM plas. It was my altenator belt was not tight enough to maintain a full charge. It took me two years to find the problem. It can also be the battery has a dead cell which will drain it overnight. Can also be some light is staying on and pulling power from the battery. Also a stuck relay will drain the battery. Loose or corroded connections is…