Headlights & Dash Lights w/ Dimming pulse??

[Jimmy1040]

My headlights, side markers and dash lights have dimming pulse. Any ideas what this could be?

 

[greasypigeon]

too much load on your battery. You might have to up grade to a better alt.

 

[Jimmy1040]

I'm not running anything extra. No even a radio.

 

[Viperwolf1]

Get an electronic voltage regulator to replace the mechanical one.

 

[blubuckaroo]

Origonal wiring has a lot of old connections as well as the old light & dimmer switches. A good mod it to install a light relay kit. Something I'm considering.

 

[mhandy]

ditto on the electronic regulator. it fixed the same problem on mine.

 

[Jimmy1040]

Thanks, I will try one. Is there any difference in them or are they all the same?

 

[70_Steve]

ditto on the electronic regulator. it fixed the same problem on mine.

Thanks, I will try one. Is there any difference in them or are they all the same?

The one that comes to mind is for a 78 Granada.

Our original equipment voltage regulators are electro-mechanical. That is, they have relays inside that turn the alternator on and off. The pulsing you see is just that.

 

[luvmybroncoman]

Get one of these

http://www.wcb4x4.com/mm5/merchant....ode=WCB&Product_Code=10109&Category_Code=WIRE

 

[Jimmy1040]

Great info, Thank you guys.

 

[Jimmy1040]

The one that comes to mind is for a 78 Granada.

Our original equipment voltage regulators are electro-mechanical. That is, they have relays inside that turn the alternator on and off. The pulsing you see is just that.

Will it just plug in to original or will I have to do any wiring?

 

[Broncobowsher]

Will it just plug in to original or will I have to do any wiring?

It's a plug in. Make sure you have it attached to the body (grounded) before plugging it in. Bad/no ground will blow it's mind then it won't work.

You could also have an alternator going out.

 

[luvmybroncoman]

It could be any number of electrical things causing it. I eventually did a complete re-wire and still used that harness I mentioned. I used American Broncos generic harness.

 

[Scoop]

Origonal wiring has a lot of old connections as well as the old light & dimmer switches. A good mod it to install a light relay kit. Something I'm considering.

Get one of these

http://www.wcb4x4.com/mm5/merchant....ode=WCB&Product_Code=10109&Category_Code=WIRE

X2 - this is a really good mod and will stop the pulse AND make you lights brighter.