Low voltage after new battery and new alternator?
#31
Pole Position
Back from Autozone. They said the alt is charging but not at what it should be and also said the regulator was bad. Are Duralast alternators junk for our cars or could it be the ecu making the alt appear bad? I don't see any point in replacing a new alternator with the same one just to have the same problems happen again. They also said the battery is only at 75%, but that is the alternator causing that.
Any of these any good?
http://www.ebay.com/itm/Lexus-LS400-...0f0911&vxp=mtr
http://www.ebay.com/itm/LEXUS-ALTERN...612299&vxp=mtr
Any of these any good?
http://www.ebay.com/itm/Lexus-LS400-...0f0911&vxp=mtr
http://www.ebay.com/itm/LEXUS-ALTERN...612299&vxp=mtr
#32
Lexus Champion
#34
Driver
Thread Starter
Some of you are missing the point. I know all about car audio installation, but this problem was happening before I ever hooked anything up that was aftermarket. The only reason I'm getting the 200amp alt is because it is cheaper than an 80amp Denso and the Autozone Duralast alt seems to be junk. If you read the entire thread you will see that I have no headlight or dash lights dimming. The regulator seems to be the issue and has jack to do with the aftermarket stuff.
#35
Lexus Champion
I know all about car audio installation
#36
Lexus Champion
#37
Driver
Thread Starter
You are not sure of anything imo! Running stock everything doesn't require extra wiring. Nothing aftermarket was hooked up when the battery alternator test was done. So what is your point? I have a Tahoe with HO Alt, 2 large batteries in the back, 2 runs of 0 gauge, 4 15" sub, and 4 amps. So please tell me again what I don't know? The 200amp alternator is on it's way.
#39
Pole Position
You are not sure of anything imo! Running stock everything doesn't require extra wiring. Nothing aftermarket was hooked up when the battery alternator test was done. So what is your point? I have a Tahoe with HO Alt, 2 large batteries in the back, 2 runs of 0 gauge, 4 15" sub, and 4 amps. So please tell me again what I don't know? The 200amp alternator is on it's way.
#41
Driver
Thread Starter
It turned out to be a complete waste of time getting this new alternator. I went to get it put on at a real shop with certified mechanics. They tested the battery and alternator and said there is nothing wrong. He said the guy at Autozone doesn't know what he's talking about. I even played the system to see if it was pulling too much power, and the mechanic said it is not worth the upgrade because it wasn't presenting any real strain on the electrical system. The alt is charging properly and the battery is fully charged. I guess Duralast isn't junk after all.
#43
Lexus Champion
It turned out to be a complete waste of time getting this new alternator.
I went to get it put on at a real shop with certified mechanics.
#44
Pole Position
Anyone who knows anything about auto electronics will tell you, with what you're putting in for a system, you will need a bigger alt to keep enough juice going.
#45
Driver
Thread Starter
Seems like somebody doesn't know something b/c you tested it yourself and said it wasn't charging properly and the battery didn't have enough juice.
Anyone who knows anything about auto electronics will tell you, with what you're putting in for a system, you will need a bigger alt to keep enough juice going.
Anyone who knows anything about auto electronics will tell you, with what you're putting in for a system, you will need a bigger alt to keep enough juice going.