Charging question
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=46907
Printed Date: May 02, 2024 at 10:53 AM
Topic: Charging question
Posted By: supradude
Subject: Charging question
Date Posted: January 04, 2005 at 5:01 PM
I was just told that my car needs to idle at least 800 rpm's before the HO alternator will charge. I have been using it for 21 months with no problems. Now when it idles, it shows that it is discharging some. This sounds fishy to me, seeing how it has a 24 month warranty. If I rev it up a little it will charge normally. Does this sound correct or are they trying to pull one over on me?
-------------
'85 Toy
Replies:
Posted By: DYohn
Date Posted: January 04, 2005 at 6:01 PM
That sounds normal to me. ------------- Support the12volt.com
Posted By: archemedes
Date Posted: January 04, 2005 at 6:19 PM
yep normal it takes a bit of rpm to get teh alternator to charge, even your factory one will need to get some rpm, 800 isn't that high some have needed 1000
Posted By: supradude
Date Posted: January 04, 2005 at 7:15 PM
So, how do I get the car to idle up? It is an '85 Toyota Supra, and it doesn't have an adjustment on the idle speed. And why has it been working fine for 21 months, until last week, when it started doing this?
-------------
'85 Toy
Posted By: stevdart
Date Posted: January 04, 2005 at 10:08 PM
Seems to me that anytime I've had that happen it was a weak or worn out battery.
Posted By: supradude
Date Posted: January 04, 2005 at 10:17 PM
I'll have the battery checked. It is only 6 or 7 months old (Platinum series from Advance Auto), but I know even a new battery can be bad. It don't give any trouble cranking though. But I guess it could be weak.
-------------
'85 Toy
Posted By: supradude
Date Posted: January 05, 2005 at 10:04 PM
OK, I checked with Toyota, and 650 rpm's IS normal idle for 85 Supra's once they warm up. There is no adjustment. My battery checks out fine. I had no trouble for 21 months with this alternator. To me, this points directly to the alternator giving problems. Any other ideas? I still have the factory one, so I guess I'll put it back on the car and see if this problem goes away. I have stood up for alterstart several times, on this forum, and to any body I've seen. But after the way they talked to me on the phone the other day, very rude and short, I will buy elsewhere from now on if I need another one.
-------------
'85 Toy
Posted By: wheelerdr
Date Posted: January 06, 2005 at 12:43 AM
that really does sound normal for a ho alt. what kind of system do you have or how many amps are you drawing, I would suggest going to a yellow top
-------------
Posted By: supradude
Date Posted: January 06, 2005 at 10:43 AM
It is discharging at idle with the stereo off, nothing but the headlights and heater blower on. It worked for 21 months with no problem, even playing the stereo while idle. That is the part that is frustrating me. If this is normal, why did it work for so long before it started doing this?
-------------
'85 Toy
Posted By: Jay T
Date Posted: January 06, 2005 at 6:59 PM
if your a battery is not getting enough to charge when you are just running minor acc's, there is a problem with the alternator for sure. It may also be the voltage regulator. Which I believe is internal in the alternator, or is also an external unit depending on the make and model of car
Posted By: supradude
Date Posted: January 06, 2005 at 8:34 PM
Thanks for the reply. I am sure it is the alternator. I have the one that came off of the car somewhere, but I haven't been able to find it yet. The company that sold it to me was very rude when I called them about this problem, and I want to prove them wrong before I send it back to them. Companies like that don't need to be in business. If you warranty a product you should stand behind it.
-------------
'85 Toy
|