[V8] flickering lights, voltage regulator?

Buchholz, Steven Steven.Buchholz at kla-tencor.com
Wed Oct 19 18:43:32 EDT 2005


... one key piece of information is whether or not the fluctuation
frequency varies as a function of the engine speed.  If it does not that
does not completely exonerate the alternator, but it does tend to cause
one to consider other possibilities ... 

... could you have a bad connection to the field line to the alternator?
... is there possibly some load that is switching on and off in a
rhythmic fashion ... say something like the A/C Compressor clutch or
some other high load item ... seat heater perhaps?

IME alternators are pretty robust and consistent in their operation.
That said, I have replaced the alternator on one of my V8s ... 

Good luck!
Steve B
San Jose, CA (USA)
> 
> I just went down to the parking garage. The condition exists
regardless of
> whether the headlights are on. I was struggling to think of a better
term
> than flicker. It's more of a pulsation, barely noticeable, but not
> imperceptible. If it's not dark you can still see it but sometimes you
have
> to kind of blur your vision and look just to the side. This was all
based on
> my observation of my center dome light.
>  I think I'm going to go after the voltage regulator. In a rebuilt
unit, it
> may have been given only quick consideration and thought good. I'll
see what
> tests I can run on it.



More information about the V8 mailing list