[200q20v] Alternator Idiot Light

[Derek Pulvino]

Phil,

On the money!  Checked the connections last night and the blue wire was incorrectly connected.  Now the only question is what in the world made me think that was a ground to be connected to the alternator body?  So, reattached and everythings cleared up now.


Derek

>>> Phil Rose <pjrose at frontiernet.net> 02/13/01 06:16AM >>>
Derek,
If the drive belt is tensioned OK, there shouldn't be a lot of add'l
charging  from "revving up the engine". But when there is (much effect from
revving above 2K), it might be a symptom that the small blue wire from the
alternator (field wire) is disconnected or corroded.

Phil

>Dave,
>
>Thanks for your input, but I'm pretty confident the alternator is Aok.
>The reason I think it might be wiring is I recently removed the alternator
>from the vehicle, and it was working fine before reinstall.  Also, lights
>work fine with car running or not, and once the voltmeter indicates the
>vehicle is up to the correct voltage, it stays there with no fluctuation.
>
>Derek
>
>>>> David Schaible <dschaible at penw.com> 02/12/01 01:41PM >>>
>
>the brake lite circuits are activated when the voltage goes low....i am
>installing a rebuilt alternator tonite to correct this issue with my car.
>i verified that the alternator was the culprit...alt/gen usually go
>intermittent before they fail out right in my experience... although this
>last time it just died....your issue sounds like failing
>alt/gen....although there could be some large scale short or voltage
>regulator issue that is intermittent that is bringing you voltage low....(
>or maybe you shouldn't have installed 1500 amps worth of stereo upgrades to
>get that good sound and kicking bass response  ;-)...germanautoparts.com
>(adirondack auto brokers) had right one in stock..bosch rebuild for $210
>plus core which was the best price i could find, non bosch rebuilds are
>cheaper....AL179x i believe is the part # for the 110 amp unit
>
>
>At 01:17 PM 2/12/01 -0800, you wrote:
>>Hey all,
>>
>>Has anyone had any experience with the alternator idiot light coming on in
>there cars?  I am experiencing that phenomenom right now, and along witht
>the alternator light coming on, ABS off light, and parking brake are also
>coming on and staying on.  Voltmeter shows the system to be running at 13.5
>volts or so (after reving up the engine), and the ABS is working.  Someone
>suggested it might be a function of having attached some wires to the back
>of the alternator incorrectly, but wanted to see if anyone else had some
>experience with this before I go hunt and peck.
>>
>>Derek
>>
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>
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Phil Rose
Rochester, NY
mailto:pjrose at frontiernet.net