What do you do if you replaced the alternator and still there is no power from it?
There are a couple of possiblities here, assuming the replacement alternator checks out ok. Most common, the main feed wire from the back of the alternator to the battery has a problem. In many vehicles there is a fuseable link where the wire attaches to the large starter bolt. (Again, this is not every vehicle.) This could be burned. An easy way to check for this is using a test light, one that you clip to ground then probe a wire to light it up. Ground it, then (carefully so you don't short out the tool) touch the large wire connection at the back of the alternator (with the engine off.) Many Fords use a second large connector on the side of the alternator; two large, same-colored wires are your feed wires. If it doesn't light up, that's your problem. Find the wire break. If this isn't the problem (98% of the time it is), there is the remote possibility that the switched feed wire to the regulator is not getting power. Basically, this tells the regulator that the vehicle is on and it's time to charge. Not a common problem though.
The oil and battery lights keep coming on in a 1999 Galant while driving replaced the battery but the problem still persists What is the likely cause?
Why would the amp light be on after changing the alternator battery and solenoid on a 1990 Ford Tempo?
What could cause engine to try shutting down while driving and battery going dead overnight if battery and alternator have been replaced?
Sounds like the engine is using the battery as the source of power instead of using the alternator. The main job of the battery is to give power to the starter that "starts" the engine. Once the engine is started the alternator kicks in to maintain power throughout the vehicle, as well as keeping the battery strong. But if the alternator isn't working, the engine will get it's power from the battery. And without the…
I have a 2.0 1995 Mercury mystique the battery charge light was on no output on old alternator. Replaced alternator No output from new alternator "charge light out" (wiggle test wires& re-check wires) at alternator *still no output* is there a fuse that could be the problem or just another bad alternator... I would check the alternator plug before getting another alternator, it may be bad. And is a lot cheaper to replace.
You replaced the alternator on my 2000 mercury cougar and the battery light still came on so you replaced the battery and the light is still on now what do you do?
You've replaced the Alternator fuses everything you can think of alternator still not working running off the battery what or where should you look for next?
One source of whining could be many things but the first that comes to my mind is the Alternator. The CV joints could possibly make this noise too but I would personally consult a mechanic about this. any motor attached to the engine could be a cause but I would take it to a mechanic: alternator, compressor, water pump, etc.
Still Having Electrical Problems AFTER Replacement of Alternator. That situation suggests that you have one or more of many possible problems which probably existed even before you replaced the alternator. Replacing the alternator did not correct the preexisting defect. It also suggests that there was nothing wrong with the "old" alternator and you wasted a lot of money replacing it. The proper "fix" for this situation is that you need to have a qualified automotive…
1991 Geo Metro alternator problem your alternator smoked you replaced it but it happened again if you let it idle a minute it runs fine for awhile then it loses power and overheats the alternator?
If the battery is sulfated (or otherwise faulty) to such an extent that it calls for a continuous charge, the alternator never gets a chance to switch off. With the resposibilitiy to run continuously the alternator overheats and eventually fails. Never replace a faulty alternator without also checking the battery.