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Old 03-08-2006, 12:32 PM   #1
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Default dash and headlights flicker

I'm curious if I've diagnosed my problem the right way. My car is in good shape all except I discovered the headlights and dash lights flickering when it idles. I'm pretty sure it needs a new alternator, but wanted to ask before I just jump to it and buy one. Help please?!?! BTW I'll get pics of the tint soon, I keep washing the car then it rains or snows!! Looks sweet tho!
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Old 03-08-2006, 12:41 PM   #2
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By "flickering", do you mean dimming and pulsing with the motor revs at idle? If so, then your diagnosis is likely correct.
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Old 03-08-2006, 12:47 PM   #3
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Quote:
Originally Posted by lash
By "flickering", do you mean dimming and pulsing with the motor revs at idle? If so, then your diagnosis is likely correct.
I agree with Lash...

If you have a Voltmeter( digital or Analog ) you can check the amount of voltage the alternator is putting out.. Almsot sounds like the alternator has a bad field in it, like its half working...

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Old 03-08-2006, 12:48 PM   #4
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Would checking the battery cable and terminals make sense too? I was thinking maybe its just a bad wire or some corrosion?
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Old 03-08-2006, 12:56 PM   #5
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Quote:
Originally Posted by Mortehl
Would checking the battery cable and terminals make sense too? I was thinking maybe its just a bad wire or some corrosion?
When I bought the car it died soon after (I was pissed) but it was bc it had a bad battery that imploded (if that makes sense. But one cable was replaced bc it was carroded a little from the acid leaking out a little from the top. LASH: Yeah that'* what it'* doing... pulsating with the engine... but it does it with the turn signals too. When the signal is on you can hear the engine pulsating also. Otherwise it'* just the lights when the car is setting at a light in or out of park doesn't matter. But i need to get this fixed bc it'* so cold here in MI it'* not good for the car bc even when you turn it over sometimes after a cold cold night it turns for a few seconds b4 it finally catches and starts.
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Old 03-08-2006, 12:59 PM   #6
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Melissa, it does sound as if the Alt may be toasted... Might not be putting out enough juice.. I wonder what the voltage its putting out is..

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Old 03-08-2006, 01:32 PM   #7
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I'm with CDS and Jr'* on this one.

Easiest way to test it is to head over to Autozone/Advance...play the silly girl routine and have them do a free check on it.
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Old 03-09-2006, 04:47 PM   #8
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Quote:
Originally Posted by BillBoost37
I'm with CDS and Jr'* on this one.

Easiest way to test it is to head over to Autozone/Advance...play the silly girl routine and have them do a free check on it.
Stop it Bill, were you planning on watching through the hedges. They did it for me for free

I am getting aweful fluctuations on my voltmeter. I just got a new alternator. I'm thinking it is the battery since they are supposed to be changed in pairs. I'm thinking the weak battery is straining the alternator...but I don't want to spend money on the battery since my car'* days with me are numbered. Plus my alternator replacement is covered for one year 30k...so when the alt dies again because of the battery I am all set
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Old 03-09-2006, 05:34 PM   #9
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i know i had to replace my alt and batt in nov. the battery was weak which caused the voltage regulator in the alt to fry trying to recharge the dying battery.
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