lights 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 |
Re: lights flickering on accent
Reply to message from "Humanvirus" <kcallum@gmail.com> (Sat, 27 Jan 2007
10:27:27) about "lights flickering on accent": 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 === Posted with Qusnetsoft NewsReader 3.3 |
Re: lights flickering on accent
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. On Jan 27, 6:21 pm, Wayne Moses <wmo...@houston.rr.com> wrote: > Reply to message from "Humanvirus" <kcal...@gmail.com> (Sat, 27 Jan 2007 > 10:27:27) about "lights flickering on accent": > > 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 <wmo...@houston.rr.com> Sat, 27 Jan 2007 14:06:10 -0600 > > === Posted with Qusnetsoft NewsReader 3.3 |
Re: lights flickering on accent
On 27 Jan 2007 08:27:27 -0800, "Humanvirus" <kcallum@gmail.com> wrote:
>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 |
Re: lights flickering on accent
Reply to message from "Humanvirus" <kcallum@gmail.com> (Sat, 27 Jan 2007
16:25:48) about "Re: lights flickering on accent": 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: >> Reply to message from "Humanvirus" <kcal...@gmail.com> (Sat, 27 Jan >> 2007 >> 10:27:27) about "lights flickering on accent": >> 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 === Posted with Qusnetsoft NewsReader 3.3 |
Re: lights flickering on accent
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 On Jan 27, 9:02 pm, Wayne Moses <wmo...@houston.rr.com> wrote: > Reply to message from "Humanvirus" <kcal...@gmail.com> (Sat, 27 Jan 2007 > 16:25:48) about "Re: lights flickering on accent": > > 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: > >> Reply to message from "Humanvirus" <kcal...@gmail.com> (Sat, 27 Jan > >> 2007 > >> 10:27:27) about "lights flickering on accent": > > >> 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 <wmo...@houston.rr.com> Sat, 27 Jan 2007 18:57:28 -0600 > > === Posted with Qusnetsoft NewsReader 3.3 |
Re: lights flickering on accent
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 "Humanvirus" wrote > 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 -- Posted 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-fli...ict204676.html |
Re: lights flickering on accent
"Humanvirus" <kcallum@gmail.com> wrote in message news:1169952271.964288.171710@l53g2000cwa.googlegr oups.com... > 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 > 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 > Definitely weird, but I think I would start with the battery - despite your clear objection to that. -- -Mike- mmarlowREMOVE@alltel.net |
Re: lights flickering on accent
"Mike Marlow" <mmarlow@alltel.net> wrote in message news:90956$45bc98fb$452894fb$17037@ALLTEL.NET... > > "Humanvirus" <kcallum@gmail.com> wrote in message > news:1169952271.964288.171710@l53g2000cwa.googlegr oups.com... > > 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 > > 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 > > > > 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. -- -Mike- mmarlowREMOVE@alltel.net |
Re: lights flickering on accent
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. On Jan 28, 8:41 am, "Mike Marlow" <mmar...@alltel.net> wrote: > "Mike Marlow" <mmar...@alltel.net> wrote in messagenews:90956$45bc98fb$452894fb$17037@ALLTEL.N ET... > > > > > > > > > "Humanvirus" <kcal...@gmail.com> wrote in message > >news:1169952271.964288.171710@l53g2000cwa.googleg roups.com... > > > 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 > > > 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 > > > 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. > > -- > > -Mike- > mmarlowREM...@alltel.net- Hide quoted text -- Show quoted text - |
Re: lights flickering on accent
"Humanvirus" <kcallum@gmail.com> wrote in message news:1169992713.748397.111990@h3g2000cwc.googlegro ups.com... > 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. |
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