does your bronco have an external voltage regulator if so i would take it and have it checked
Your alternator is probably rebuilt and not really new. I have had this problem several times and I have bought a new battery and alternator. The alternator keeps your battery charged and powers your electrical system, so even when driving you can lose all power in the car from the alternator draining your battery. Take the battery and alternator to an auto store and they will test both for free. Ask them about the difference in a rebuilt alternator and a brand new one. This is a very common problem.
Alternator not working properly or not connected properly. Wherever you bought the alternator take it back and have them check to make sure it works properly. Also make sure the new battery was fully charged when you received it. HTH.
Repair the alternator to battery connections or replace the battery.
Had the same problem. Bought a re-conditioned alternator, turned out it was bad. Usually if battery draining, it's alternator or battery or both.
If you replaced the battery with a brand new one, then no. The battery comes from the store with a fuul charge. If it didn't come charged up, then you have bought a defective battery.
First check your alternator to see if it charging the new battery. If it is, then you might have bought a bad battery. If the alternator isn't charging then you need a new one. Check your amp guage if it has one. That is the very first place I would start looking!
It is the alternator. I have a 95 Monte Carlo and this has happened to me twice in the 3 years I've had the car. Each time I had to have the alternator replaced. The first time I had a problem with the alternator I took it to a shop and had it fixed. Two years later the alternator went out again without warning. That time we took it to a different shop and bought a new alternator with a three year warranty so it'll be free if it goes out two years later again.
if it stalls when you remove positive battery terminal then your alternator is bad Yes, it could be the alternator, but I have an 89 Celebrity and when I first got it we had the same problem and would die out every few minutes and need a boost. We changed the alternator, did not help. We bought a Duralast Gold battery from Auto Zone which helped a little but did not fix the problem. We then took the car to an alternator repair shop called Gabby's in Knoxville TN and they replaced a large fuse under the dashboard and I never had the problem again. Cost me $5.00.
It could be that your battery is not getting charged by the alternator, which would be either a dead battery, a bad alternator, or a wiring issue. I'd get it checked at an actual automotive electical specialist, not at an auto parts store or a Wal-Mart-ish place. -or- Try jump starting the battery and letting it run for awhile (15-20 mins). Turn the car off then see if it starts. Did you buy the alternator new or get it at a junk yard? If new then it's probably the battery, which you can easily replace. If the alternator was bought second hand go get another one. If that doen't work then try the new battery thing. If neither of these things work, then you might consider taking it to a repair shop. If you need a specialist they will tell you, but chances are they can fix whatever problem you're having.
AnswerWithout buying expensive test equipment, you can test it by replacing the questionable part with a known good part.Answerdid you have the new batt.tested where you bought it?you can get a bad batt.off the shelf i know. starter draging.just went though this myselfEven though its a new battery, it may be the alternator!! the easiest way to check it is to get it started when running, take the negative cable or black cable off of your battery if it stays running your alternator is fine if it dies the alternator is bad!! the alternator helps keep the battery charged and going!!
If you don't have fuel injection, pull the hot (red) post off your battery. If the car goes dead the alternator is not charging the battery.AnswerIf you have a local parts store they will test it on the car,most for free. check the spark plugs and wires, if they are faulty then it will cause your alt. not to charge, i had the same problem, i bought a new battery,got the alternator tested and it still would be dead, after i changed the spark plugs the problem disappeared(AND IT THE CHEAPEST) i did all of this in -40c weather
yes! had this problem for years bought a new alternator all my problems went away.