the only reliable way of determing if your alternator has gone bad is to have it tested by an automotive electricial specialist. That is because most modern alternators have the voltage regulator built in, so just testing to see if it is generating will not tell the whole story. Warning signs of alternator/voltage regulator failure are dead battery, but battery can be charged, lights dimming and getting brighter while driving, and hard starting.
Bad heater core?
it is possible the wheel hub is damaged.
Maybe a bad alternator, or could need a tuneup.
Turn car on remove positive battery terminal if car turns off alternator is bad
Alternator not charging battery due to a bad fusable link?
Your alternator might be bad and not charging your battery properly.
Check coolant level? Bad thermostat? Heater core airbound? Temperature control cable not adjusted properly?
When your battery does not get charge.
Typically you know your alternator is out when you have to jump start your car numerous times. A way you can test it is by turning on your car and while it's running discount the + terminal. If the car turns off then your alternator is bad. If the car remains in then alternator is good and possible bad battery. Hope this helps
If it is makeing a noise or is not putting out at least 13.5 volts it is bad. Take the car or the alternator to an Auto Parts store and have them load test the alternator to be sure.
On a 1999 GEO Tracker, a bad fuse can cause the headlights and dash lights to blink. A bad voltage regulator or alternator can also cause lights to blink and flicker.
A bad belt, a bad regulator in the alternator or bad brushes in the alternator.
If the alternator fuse is bad, the alternator is not going to work properly to charge the battery. An alternator runs off the serpentine belt, with graphite brushes inside that conduct electricity to charge the battery.
with vehicle running pull posative side battery terminal off if it quits alternator is bad
Make sure the starter is getting voltage. If it is, perhaps the starter is bad. If it isn't, maybe your ignition switch is shot.
Its pretty bad a lot of stuff has to be removed before you can get to it, I suggest you change the timing belt while you have everything removed
To test the alternator if funds are low, let the motor idle and remove the negative battery cable, if the motor dies its probably the alternator.
it very well could be a fuel issue like a bad fuel filter or a clogged sock,bad fuel pump if you replace the pump always replace the filter
Check voltage with a voltmeter at the battery With engine running readings should be 13.8-14.2 With engine running hold a screw driver to the back of the alternator, if there is no magnetic field, the alternator is bad.
If your talking about cars... If you smell a burning smell, or your red battery light comes on then i would get your alternator checked out!
unplug the connector on the back of the alternator.install a new fuse in the fuse box turn the switch on .if it does not blow you have a bad regulator in the alternator .
There could be many reasons why a 2001 Chevrolet Prizm will not start. A few reasons could be a bad starter, bad plugs, no gas, or a bad sensor.
bad alternator, bad voltage regulator, bad battery, bad connections.
You can have it tested at a auto pars store like autoZone. Another symptom is that if it has power issues, its the alternator I have the 03 LS and it needs a new alternator.