The Dude Abides Posted November 12, 2010 Share Posted November 12, 2010 I think i know the problem anyways but i figured id ask since ihavent really been on here in months. While driveing last night i noticed the higher the rpms got the brighter all the lights got. When the rpms went down as i shifted they dimmed. Pretty sure that would be the voltage regulator in the alternator right. 88DL Fuel Injected Quote Link to comment Share on other sites More sharing options...
TRAVIS75 Posted November 12, 2010 Share Posted November 12, 2010 99.999999% sure that would be the problem Quote Link to comment Share on other sites More sharing options...
TomRhere Posted November 12, 2010 Share Posted November 12, 2010 Low output usually indicates bad alt due to worn brushes/comutator/wiring issues. High output usually is sign of bad regulator. Other issues arise when the diodes/rectifier is going bad. Quote Link to comment Share on other sites More sharing options...
Flowmastered87GL Posted November 12, 2010 Share Posted November 12, 2010 sounds like my GL way back... ya... I used the proper gear to keep the voltmeter around 14V... though I dont think a DL has a voltmeter does it?? My $$ is on the alternator. Either get a good used one off a friend here or if you go to a parts store spring for the lifetime warranty... Autozone hated me.... I think I got a new one every 6 months or so. Quote Link to comment Share on other sites More sharing options...
The Dude Abides Posted November 13, 2010 Author Share Posted November 13, 2010 I hardly drive the car anymore but if i do this i think ill do the maxima upgrade. Though i cant find them on RockAuto cheep anymore. Quote Link to comment Share on other sites More sharing options...
Twitch de la Brat Posted November 13, 2010 Share Posted November 13, 2010 Being in your area, Ben, I would think the GM alt swap would be easier. Mostly because I'm sure there are a lot more domestics than imports in the area. And it's really easy to fab up a custom bracket for the large case alts. And as for the problem, it sounds to me the contacts and the like are going away, as was already mentioned by Tom. Twitch Quote Link to comment Share on other sites More sharing options...
True2Blue Posted November 14, 2010 Share Posted November 14, 2010 through out my 5 subarus and 3 2000watt+ stereo systems i know the symptoms of a bad regulator and yea if your over 14.7 or so your heating things up. my volt meter in the cluster would jump all they way up then level out randomly at first. i waited for money to come in to buy an upgrade then the vm needle would rise and fall with the rpms. my stereo 'deck' harness would get HOT and things would cut out like lights and speaker sound Quote Link to comment Share on other sites More sharing options...
Cougar Posted November 14, 2010 Share Posted November 14, 2010 This is a no brainer. Driving the car while the voltage regulator is out can cause other bad electrical issues to occur. Quote Link to comment Share on other sites More sharing options...
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