Replaced alternator and battery....NEED HELP!

OK guys, I replaced the alternator and battery but the same problem is occuring. I still am not getting enough charge from the alternator to my battery. Could it be a fuse or faulty wireing?? I heard of a guy bypassing certain fuses and running a 8 guage wire straight to his battery...how can I do this?? Thanks a lot.

OK guys, I replaced the alternator and battery but the same problem is occuring. I still am not getting enough charge from the alternator to my battery. Could it be a fuse or faulty wireing?? I heard of a guy bypassing certain fuses and running a 8 guage wire straight to his battery...how can I do this?? Thanks a lot.

Quite simple really. With the right tools you can buy a 10 guage or larger wire, cut it to length, crimp on the end terminals, and bolt it right on.

Find the large wire on the back of the alternator and that is where you attach one end and the other to the battery bolt. Of course you have already nicely routed and secured the wire right?

Blake

have you verified that your belt is not slipping, I have had real problems in the past getting mine tight enough. I end up using a very large screwdriver to pry it up untill it is very tight. It does sound like you have another issue. It is possible to get a bad alternator, I would look for a parts store that can check your charging system on the car. They should be able to determine if the alternator is charging the battery. I would also check for any wires that seem to be hot, you might be partially grounding out part of the circuit.

The pully seems to spin nicely while at idle and when reved...this is to the human eye though.....Also, what 'hot or corroded' wires might I check and where? I have a haynes guide, it is in my dorm room though.....Where are all the fuse boxes so I can check them?


Also, about the bypass with the 10 guage wire.....There are two wires coming out of the alternator...one is atached with a green plug and one is screwed in....I am not an electrician(play one on tv though) and i need to know which wires would goto where if I were to do this..


Thanks a bunch guys...

Make sure the ground connections are in good conditions. If there is no return path between the battery and the alternator, the battery will not charge.

Make sure the connection between the battery and the engine is clean. Often at the engine connector get very dirty and if it's loose, the dirt gets between the connector and the block. Check the same between the battery and the car frame.

To check if you have a resistance (small wire, fuses, bad connection)between the alternator and teh battaeru, you need to measure the voltage between the alternator output (att he alternator) and the battery post. With the engine turned off, the voltage difference should be zero. With the engine at idle, I would expect a very small difference. maybe 0.25V.
You can do the same thing between the negative post and the engine block and the engine frame. They should all be at the same voltage.

Seb

I struggled with the same problem on my old 89 Metro. I replaced the battery and went thru about 3 or 4 alternators before I discovered the corrosion on the output wire from the alternator where it plugged into the fuse block located on the wheel well directly behind the battery. Once I cleaned that up and put it back together I had no more problems with it.