REaudioBuff Posted June 5, 2011 Report Share Posted June 5, 2011 I have a 2007 scion tc... I just got a new alt for the car and put it in because the old one just looks shot and when i spun in by hand made some horrible noise so im assuming it is shot... lol 7k on stock alt for over a year... Anyways i installed this new alt and its also 100amp alt which im aware only does about 30 amps at idle but i have had no problems with charging for the entire time i had the car and system in it until about 6 months ago when i noticed the alt was probably going out. Now the most i see is 12.8-13.0 volts... I have had my car sitting on a charger for 2 days my back 2 deka g31a's are sitting at 12.87 each and the front XS power d3400 is at 13.3 resting... And for some GD reason my car will not charge at 14.4volts anymore... My vlotage will drop into the 11s if i turn up the system to listening levels i had just a month ago... That however would be just into the 13s or high 12's if it was charging @ 14.4 volts. Anyone know what the problem could be?? How to fix it??? Quote 1 Crossfire XS v2 15" 2 Deka group31a's 1 XS Power D3400 (under hood) 1 Addictive Audio 500.1 1 Rockford 3sixty.2 4 Crescendo pwx 6.5s 2 Pyle Pro Super tweets 1 Crescendo 1000c4 Kenwood excelon x494 Head unit Big Three upgrade All 0 gauge of course 1 4.56c^ft box @28hz (New Best official db score= 151.2 @ 36hz) Link to comment Share on other sites More sharing options...
Louisiana Bass Posted June 5, 2011 Report Share Posted June 5, 2011 Could be a bad alt? I'm interested also, my voltage doesn't go up higher than 13.8, even with no amp running and driving for three hours. Quote N8. No homo...unless you want there to be. Link to comment Share on other sites More sharing options...
REaudioBuff Posted June 5, 2011 Author Report Share Posted June 5, 2011 I dont think its bad alt because my last alt did the same thing... and that was for sure a burnt alt... This is not however.. Quote 1 Crossfire XS v2 15" 2 Deka group31a's 1 XS Power D3400 (under hood) 1 Addictive Audio 500.1 1 Rockford 3sixty.2 4 Crescendo pwx 6.5s 2 Pyle Pro Super tweets 1 Crescendo 1000c4 Kenwood excelon x494 Head unit Big Three upgrade All 0 gauge of course 1 4.56c^ft box @28hz (New Best official db score= 151.2 @ 36hz) Link to comment Share on other sites More sharing options...
sqsux Posted June 5, 2011 Report Share Posted June 5, 2011 well since you don't want it to be the alt i would pick bad ground Quote Start out boxy, shape as you move along. Dc Audio Team Fur Link to comment Share on other sites More sharing options...
REaudioBuff Posted June 5, 2011 Author Report Share Posted June 5, 2011 Bad ground could cause this??? I will go check the grounds and redo some then lol.. Quote 1 Crossfire XS v2 15" 2 Deka group31a's 1 XS Power D3400 (under hood) 1 Addictive Audio 500.1 1 Rockford 3sixty.2 4 Crescendo pwx 6.5s 2 Pyle Pro Super tweets 1 Crescendo 1000c4 Kenwood excelon x494 Head unit Big Three upgrade All 0 gauge of course 1 4.56c^ft box @28hz (New Best official db score= 151.2 @ 36hz) Link to comment Share on other sites More sharing options...
sqsux Posted June 5, 2011 Report Share Posted June 5, 2011 yes, there's a saying that goes "your electrical is only as good as your worst ground.". personal experience would be one of my connection weren't soldered, came loose without me realizing and so my batteries wouldn't charge above 12. Quote Start out boxy, shape as you move along. Dc Audio Team Fur Link to comment Share on other sites More sharing options...
REaudioBuff Posted June 5, 2011 Author Report Share Posted June 5, 2011 I will have to check into that then thank you sir!! Quote 1 Crossfire XS v2 15" 2 Deka group31a's 1 XS Power D3400 (under hood) 1 Addictive Audio 500.1 1 Rockford 3sixty.2 4 Crescendo pwx 6.5s 2 Pyle Pro Super tweets 1 Crescendo 1000c4 Kenwood excelon x494 Head unit Big Three upgrade All 0 gauge of course 1 4.56c^ft box @28hz (New Best official db score= 151.2 @ 36hz) Link to comment Share on other sites More sharing options...
89boxchevy Posted June 5, 2011 Report Share Posted June 5, 2011 but just my .02 cents just because its a new alt doesn't mean it isnt bad. ive gotten a few alts that were bad right outta the box its a pain but hey its how it goes sometimes. i would take it out and have it bench tested first before redoing all kinds of wiring that might not be the problem. Quote 89 Chevy Caprice (is under construction) dual alts 4/0 welding cable for wire red top under hood 3 yellow tops behind the front seat ( who needs a back seat anyways lol) big 3 of course Eclipse 3000 interiors are getting rebuilt now 2 crescendo bc2000 2 shocker sig 12s rebuild pics Link to comment Share on other sites More sharing options...
tlee2 Posted June 5, 2011 Report Share Posted June 5, 2011 Regulator Goin bad? Quote 6 Sundown X 15s 2 Sundown NS1 V2s C Pillar 4th order Bagged Suburban on 24s http://youtube.com/tlee333 Link to comment Share on other sites More sharing options...
REaudioBuff Posted June 5, 2011 Author Report Share Posted June 5, 2011 internally regulated so i believe that would mean it is new with the alt... And the alt was benched at autozone right before i got it... Quote 1 Crossfire XS v2 15" 2 Deka group31a's 1 XS Power D3400 (under hood) 1 Addictive Audio 500.1 1 Rockford 3sixty.2 4 Crescendo pwx 6.5s 2 Pyle Pro Super tweets 1 Crescendo 1000c4 Kenwood excelon x494 Head unit Big Three upgrade All 0 gauge of course 1 4.56c^ft box @28hz (New Best official db score= 151.2 @ 36hz) Link to comment Share on other sites More sharing options...
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