H4s dimming

[sivaDseliM]

Hi folks. Newbie to the tech forum. Not much of an electrician.

Driving at night I have noticed my headlights intermittently dimming and then going back to normal. I have tried everything I can to try and cause this dimming, but it really seems to be a random event. Switching things on and off, changing RPMs, varying incline . . . nothing will cause it manually.


Thanks!

CL

[mschuep]

How severe is the dim? Is it a flicker or does it dim for a while and then come back? If it is for a while and not too severe a dim, I would think it is just something cycling on and off automatically, alternator maybe?

[silverc4s]

This is a symptom of sticking contacts on the dimmer switch (steering column mounted) due to the increased current of the H4s... pretty common occurrence.
Do asearch here for "Sucro relay kit"

[sivaDseliM]

Thanks for picking this up. It doesn't dim very much, just enough to notice that 1) it isn't as bright as it just was, 2) light isn't as "white" - more "yellow". As for duration, up to a minute dim all the way to as short and frequent so as to piss off on-coming traffic who think i'm flashing them. On the whole, though, the lights spend more time operating properly than they do acting up.

[sivaDseliM]

silverc4s, thanks. Will do.