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12-05-2009, 03:21 AM | #1 |
should i get alternater/battery checked?
ok,i drive a 08 3dr,it has 34,000 miles on it,lately i have been noticing at night that when i apply the brakes,all the lights go dim and then brighten back up,is this a problem i should have checked, or am i just being a worry wart seeing how the warranty is almost done,there are no warning lights whatsoever and i have no problems starting the car,any ideas?
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12-05-2009, 04:02 AM | #2 |
Drives: yaris 08 sedan Join Date: Oct 2008
Location: Montreal Canada
Posts: 1,286
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Something sounds like its not working right,could be defective alternator or battery,i'd definitely bring it to the dealers attention..
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12-05-2009, 01:44 PM | #3 |
Banned
Drives: 2007 4 Door Yaris Join Date: Jan 2009
Location: Southern California
Posts: 1,357
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sounds like the alternator... and yes you should have it checked
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12-05-2009, 06:14 PM | #4 |
Audio Junky
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sounds normal to me... unless the dimming is HUGE or you notice your engine start to hiccup/drop rpm's at the same time.
go ahead and have your bat and alt checked cause its winter.... but really... lights dim... its what they do... a .5 volt dip can cause noticeable light dimming. Upgrade the alt to chassis ground, and battery chassis ground cables to 4awg or 1/0awg to help improve your electrical system's efficiency. Shouldn't cost you more than $20... buy your cable at a welding supply store, its much cheaper and just as good, if not better than the wire you'll buy anywhere else. |
12-05-2009, 10:24 PM | #5 |
Banned
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yeah when it engages the other lights that increases the load on the system, and at the same time the RPMs are dropping considerably, you should see a serious drop in voltage. If you wanna be sure measure the voltage while this is occurring, you will see it go from as high as 16v to as low 12v, depending on the variance in your alt....
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12-05-2009, 10:27 PM | #6 |
der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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just take it to the dealership and tell them you have a concern, that is what a new car warranty is for
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12-06-2009, 01:53 AM | #7 |
i appreciate all the help guys,definetly gonna take to the dealership,although i took the time to check it tonight and what is causing the lights to dim is the drop in rpm when i depress the clutch to stop,not the brake engaging,it drops below the idle speed and the ecm brings it back up,it just started doing this recently
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12-06-2009, 03:04 PM | #8 | |
Banned
Drives: 2007 4 Door Yaris Join Date: Jan 2009
Location: Southern California
Posts: 1,357
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Quote:
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12-06-2009, 04:09 PM | #9 |
Drives: '08 5-door Join Date: Apr 2009
Location: Surrey, BC Canada
Posts: 176
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Definitely not normal. Could be the alternator, the battery or both. Unless it's still on warranty, get it checked at a proper auto electric shop where they can do a load test. If it is on warranty, the dealer is your friend.
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12-07-2009, 08:22 AM | #10 |
Drives: 3-door liftback blazing blue Join Date: Oct 2006
Location: French Lick,IN
Posts: 185
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Try cleaning your battery cables. my alternator started whinning when it went bad cost $780.00 at the stealer
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07 yaris LB 5-speed blazing Blue 07 yaris LB Auto Bayou Blue rostra cruise control oem style foglights 96tacoma 4x4 xcab I4auto Weathertech vent visors Scan GaugeII |
12-07-2009, 01:03 PM | #11 | |
Drives: 08 Sedan Join Date: Oct 2008
Location: Tyler, TX
Posts: 899
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Quote:
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12-16-2009, 04:42 AM | #12 |
ok,i finally got it to the dealer,they ran a check on everything (so they say) and found nothing wrong,told me it was normal for the yaris to do that,which i find funny since it just started doing it about a month ago.
i would like to ask,anyone that has the time or thinks of it at the time,to check to see if your yaris does this,i have no mods,everything is stock and i'm usually just running the heater,radio,headlights(bright or dim) and the driving lights,thanx |
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12-16-2009, 08:31 AM | #13 |
I love momentum.
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I would take it to another dealer, that doesn't sound like normal behavior at all.
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12-16-2009, 12:33 PM | #14 |
Learn to Relax
Drives: 2007, Meteorite, LB Join Date: Dec 2008
Location: Anaheim, CA
Posts: 2,070
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Buy a new battery, cheap insurance.
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