Pulsating voltage gauge and headlights.......

[DanielKelling]

Just recently when i am in gear and idiling my headlights and voltage gauge pulsating,
I just replaced my alternator about 6 months ago...could this be the problem?? Is there way i could put in a beefier alternator??

thanks

 

[SpikeMan]

I just went through the same thing. When you install a new alternator you also have to install a new wiring harness that goes into the alternator or it will eventually catch on fire. TRUST ME! I KNOW! Also, you have to change the voltage regulator on the back of the alt. It's the grey box thing. This was my whole problem. Cured everything.

Good luck.

 

[kvo]

Spikeman -

Can you buy the voltage regulator separately from the alternator or is it one combine unit?

 

[S.Matsushige]

KVO-Yes you should be able to buy the regulator separately. When I did my altenator change, I had to buy the regulator. I checked out my old one and the contacts looked fine, but I decided since the altenator was new I would install a new regulator as well to avoid having to replace it later. You should be able to get it from any parts store.

 

[kvo]

Thanks S., my voltage meter is jumping around like a yoyo.

That was my guess but just wanted to be sure.