Tuesday, October 25, 2011

So I had a bad alternator...Changed it and ......?

yes it was refurbished but now the car wont start again and it doesnt sound like the battery or the starter it sounds like the alternator is dead again!! could it be just bad luck with getting a bad refurbished one or is something thats causing it to die. its a 1990 ford bronco2
So I had a bad alternator...Changed it and ......?
only way to tell is to get a charging system check and it will tell if the alternator is bad, autozone will check your system for free, it's not unusual to get a bad rebuilt alternator.
So I had a bad alternator...Changed it and ......?
Sounds like an autozone duralast part, who knows what it is. Get it to a shop and have the charging system inspected by a pro, that is common sense.
Something is killing the alternator.



Do a diagnostic and don't replace the alternator until you find out what is killing it. Could be something as simple as the voltage regulator or the battery itself or a bad wire or a bad cellinoid switch or a fly wheel with broken teeth or just electrical



Don't panic though. This is typical of a ford. I used to drive a ford school bus in the 1970' and it always stopped on me. The mechanics knew what it was every time, They'd lift up the hood and replace it and I would drive on.
The battery is the reason it wont start. an alternator just recharges the battery. Think of it like this you battery is a lake that you car needs to drink from. Your alternator is the stream that fills the lake. you need to fill the lake. have your battery charged and load tested at a auto-parts store. if it is good then have the alternator tested. You must have a good battery to test the alternator.
okay okay okay, Your truck would not start one mourning, Right?

1st. The alternator has nothing to do with your truck not starting.The alternator only charges the batt. There is a few things that will not allow you truck to start. Bad cable to the starter? Bad ground? From the starter? I'm not very familiar with fords but do you have a separate relay to the starter? Does you Bronco have solenoid that's not attached to the starter? Check there before replacing you alternator.
an alternator wont stop it from starting up, a bad battery will cause that ,the alternator will kill the battery in it and cause it not to have any power,but if it wont start with a jump start something else is wrong with it,a bad alternator will drain a good battery in just a few hours,you can get a bad one from a rebuilt so this may be whats causing you to loose power to it,take it and have them check it and the battery to see which one is causing the problem,good luck.
...or... you may have a short in your line somewhere. When a short happens due to a skinned wire it will arc a bit. This causes an enormous amount of heat. Smell for plastic smell after you have the car shut off for a bit. Follow your nose and you'll find the short.