 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Hyundai Cars / January 2007lights flickering on accent
When the car is running all lights interior and exterior flicker on the car. When I unhook the battery, this stops. Lights will run on just the alternator alone fine...also fine when on the battery alone (car not running) When car is started...with the battery hooked up...everything flickers. Thanks for the help. Kathy H> When the car is running all lights interior and exterior flicker on the H> car. When I unhook the battery, this stops. Lights will run on just the H> alternator alone fine...also fine when on the battery alone (car not H> running) When car is started...with the battery hooked up...everything H> flickers. Does this happen then you rev. the car? How old is the battery? Best Regards Wayne Moses <wmoses@houston.rr.com> Sat, 27 Jan 2007 14:06:10 -0600 Battery is a few months old...so is the alternator I do not think it is a battery or Alternator issue...runs fine on each one...just not both. > H> When the car is running all lights interior and exterior flicker on the > H> car. When I unhook the battery, this stops. Lights will run on just the [quoted text clipped - 8 lines] > > === Posted with Qusnetsoft NewsReader 3.3 H> Battery is a few months old...so is the alternator I do not think it is H> a battery or Alternator issue...runs fine on each one...just not both. H> On Jan 27, 6:21 pm, Wayne Moses <wmo...@houston.rr.com> wrote: >> Does this happen then you rev. the car? How old is the battery? Kathy You did not answer my first question. I take it the battery was fully charged when new and so if not the alternator that do you suspect? Best Regards Wayne Moses <wmoses@houston.rr.com> Sat, 27 Jan 2007 18:57:28 -0600 Battery is fine...alternator is fine (I think). Battery passes a load test...always starts the car...has 10.8 volts when sitting overnight...14.5 volts when car is running (Alt) Thinking computer, bad ground, some kind of regulator...that is bad I left the lights on to discharge the battery...car started 4 hours later with no boost...battery is fine. Alternator runs the car fine without the battery connected...turn on heater, defrost, wipers and lights and horn and stereo...alt puts out a constant 14.5 volts...no pulsing of the lights...hook up the battery...lights flicker (pulse)...approximately 2 pulses per second...it does this constantly as ling as the car is running with the battery hooked up. Reving the car has no effect on the pulsing of the lights > H> Battery is a few months old...so is the alternator I do not think it is > H> a battery or Alternator issue...runs fine on each one...just not both. [quoted text clipped - 17 lines] > > === Posted with Qusnetsoft NewsReader 3.3 > Battery is fine...alternator is fine (I think). > Battery passes a load test...always starts the car...has 10.8 volts > when sitting overnight... That is not a fine battery. You may have a short which is draining the batter overnight. 10.8v is not the sign of good/normal conditions. I suggest you seek out what is causing this first. > 14.5 volts when car is running (Alt) > Thinking computer, bad ground, some kind of regulator...that is bad > I left the lights on to discharge the battery...car started 4 hours > later with no boost...battery is fine. I'm having a hard time with the scenario you put together. You stated that the battery is at 10.8v after sitting overnight, then you describe a battery that recovers from a drain to start the car just fine. One of those conditions can't exist in the presence of the other. At 10.8v your car would not be turning over and starting just fine. In fact, it would likely have troubles starting at all. > Alternator runs the car fine without the battery connected...turn on > heater, defrost, wipers and lights and horn and stereo...alt puts out [quoted text clipped - 3 lines] > the battery hooked up. > Reving the car has no effect on the pulsing of the lights Definitely weird, but I think I would start with the battery - despite your clear objection to that.  Signature-Mike- mmarlowREMOVE@alltel.net > > Battery is fine...alternator is fine (I think). > > Battery passes a load test...always starts the car...has 10.8 volts [quoted text clipped - 26 lines] > Definitely weird, but I think I would start with the battery - despite your > clear objection to that. Here I am replying to my own post - sheeze! Anyway - another thought hit me. Back in the day of mechanical voltage regulators it used to be a lot more common to see this kind of pulsing when regulators were failing. It's not as common today, but the principles behind it remain the same. To boot - that could be the source of the drain that is taking your battery down overnight. I'd have that alternator checked out with a load test. Signature-Mike- mmarlowREMOVE@alltel.net Was doing it since before the alternator failed in Oct...replaced the alt...still did it...replaced the battery...still doing it...car runs fine...I measured the battery in my truck, my wifes sonata and the accent...all are at 10.4 to 10.9 volt range...btw..it is -20C or -4F here over the past few days (normal temps)...this problem has been doing this since October...does not affect the cars performance. > > > Battery is fine...alternator is fine (I think). > > > Battery passes a load test...always starts the car...has 10.8 volts [quoted text clipped - 40 lines] > -Mike- > mmarlowREM...@alltel.net- Hide quoted text -- Show quoted text - > Was doing it since before the alternator failed in Oct...replaced the > alt...still did it...replaced the battery...still doing it...car runs > fine...I measured the battery in my truck, my wifes sonata and the > accent...all are at 10.4 to 10.9 volt range...btw..it is -20C or -4F > here over the past few days (normal temps)...this problem has been > doing this since October...does not affect the cars performance. 10.9 volts without the engine running is pretty low for a fully charged battery even at that temp. I am thinking along the lines of a hard shorted cell in the battery. That would account for the ability to start the car, as well as the low voltage when off. Does the voltage nosedive immediately after shutting off the car after it's run for a while (battery should then be much warmer than ambient). If so, you have a bad battery. If the battery isn't bad, it may be that the vehicle never has a chance to fully charge the battery, which could account for the flickering. Try putting an external charger on the battery until it is fully charged. Then drive the car. Here, wallly world has Vector brand (they say Black and Decker) intelligent chargers for around $40. The one I bought does seem to do a good job of charging and maintaining the batteries I've put it on. It will also tell you if the battery is toast. >When the car is running all lights interior and exterior flicker on >the car. >When I unhook the battery, this stops. So the engine is running without the battery? Keep on doing this and your problem will be solved, the flickering will stop. I have always understood that electrical spikes will kill the electronics rather quickly with the battery unhooked. Rob Your alternator is having problems keeping proper voltage. This could be due to a problem in the alternator itself or a problem with the battery capacitance. If you’ve got another battery you can stuff in the car (even if it doesn’t fit well) just for comparison, you should probably do that first. If it cures the issue, replace the battery with one that fits properly. I suspect, however, that the problem is with the voltage regulator in the alternator. If the substitute battery doesn’t solve the problem, you’ll need to replace the alternator > When the car is running all lights interior and exterior > flicker on [quoted text clipped - 9 lines] > > Kathy SignaturePosted at author's request, using http://www.AutoBoardz.com interface Articles individually verified to usenet standards. Visit URL to contact author/report abuse Thread archive: http://www.AutoBoardz.com/lights-flickering-ftopict204676.html |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.