car making weird electrical noise

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outlaw09
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car making weird electrical noise

Post by outlaw09 »

hey guys i was on my first or second road test and my car proceeded to make a transformer like noise from the driver side dash or steering column

i have no clue on what the noise is but think it could be seat belt buzzer because i no longer have the factory seatbelt on the driver side

just hit me with ideas

trying to figure this out and i hate electrical problems
outlaw09
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Post by outlaw09 »

drove my car yesterday and i noticed that the car only does the weird humming noise when the rpms are below 2800 still lost and have been super busy haven't had time to play with it yet hopefully its something simple
ATLspeed
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Post by ATLspeed »

If your brake light and battery light are on then its alternator going out. Mine is currently "buzzing" whenever I lift of the gas. If neither light is on I would check the alternator or grounds :?:
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- 2JZ HX40 (18psi) = LOL

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airman
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Post by airman »

ATLspeed wrote:If your brake light and battery light are on then its alternator going out.
AWW HELL REALLY? Durnit.

WTB ALTERNATOR lol
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outlaw09
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Post by outlaw09 »

drove to autozone had alt tested it
tested fine
battery is good but i will definately check my grounds
i know i still have a vacuum leak really want a smoke machine or something to help pinpoint where it is at
Last edited by outlaw09 on Thu Oct 13, 2011 2:55 pm, edited 1 time in total.
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Walperstyle
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Post by Walperstyle »

Run on sentence of the year. My eyes are bleeding.
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outlaw09
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Post by outlaw09 »

fixed previous post lol
outlaw09
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Post by outlaw09 »

fixing some other issues lately found out that alternator is probably bad because i fixed dash lights and now my ebrake light and battery light are on even though the battery light is barely visible when its dark

gonna replace alternator and hope for the best. i really hope that the stupid buzzing from the smj area goes away
outlaw09
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Post by outlaw09 »

swapped alternators still the same issue so it has to be ground or something close to the super multiple junction
blacks13coupe
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Post by blacks13coupe »

Not possibly coming from the speakers? If you have an amp power wire running by antenna makes similar noise.
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outlaw09
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Post by outlaw09 »

sorry no stereo or speakers in car at the moment it definatley is from the smj or a relay that is close
outlaw09
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Post by outlaw09 »

tested volatage at battery with car running it was 13.86 and cleaned a ground on alt now its at 14.01 while car is running

so the alt is working i think i just need to clean all my grounds up some more
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Post by 8-bit »

this is a known S13 demon as far as I know. My S13 had it. It has nothing to do with the alternator. I don't think I ever fixed it.

My extremely blurry memory from 5-6 years ago tells me it has something to do with a ground that grounds a ton of different things like the dome light and such.... maybe not..... Something tells me I gave up when I realized I had to pull the dash to see all of the wiring involving this one common ground..... again.... maybe not.
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Post by airman »

I'm still going through the same thing. When I get time I'm going through the wiring harness diagram and finding out exactly what all is linked to the battery/brake light on the cluster. It's definitely a ground, though. Bouncy road = more flashing. Idle/smooth road = a lot less.
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outlaw09
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alt

Post by outlaw09 »

going through things i put new alternator on and now get a steady 14.15 volts at idle and stays the same a rev

looks like the dash is goin to have to come out i have a parts car to pull stuff from just hoping its not that bad to do
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Post by nismoautoxr »

On my S14 ...pulling the dash is like a 1.5 hour affair. I pulled it when I removed the passenger airbag . Not sure about S13s
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outlaw09
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Post by outlaw09 »

yeah it sucks but if its what it going to take to fix the problem that is what is going to happen then it just when is the question
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