My headlights seem to be doing a little surging, they will stay bright for a sec at idling, then dim down, then bright again. I noticed this on my 2nd gen too, could it be my voltage regulator going south?? If so, do they make one thats heavier duty?? I've never noticed this until now throught the years of ownership

 

my 91 has always done that in cold weather with the heater

 

my first, sec, and third gen all do it. only in cold weather. grid heater for sure.

 

yea my does it too. i bet they all do in cold weather till it gets warmed up a little bit.

 

mine used to do it a little at first then it got pretty bad butt mine was just the ground i located it along the frame rail and it quit doing it

 

sounds like a capacitor on the alternator went out. its used to smooth out the voltage from the alternator so you dont get highs and lows. i do not think its serviceable.

 

So is my alternator going bad it still seems to be charging, or is it

 

if your lights cycle dim then get bright, its the heater. normal

 

Thanks Tony