My dad's 95 explorer has some problems. ALL the lights on the thing burnt out. Even the ones on the headlight and even the 4x4 light. What could have caused this?

 

circuit breaker

 

Or running without a battery.

 

Is that the thing under neath the headlight by the oil tank under the plastic? the circuit board is bad? are the expinsive?

 

Usually, when that happens it's due to a voltage regulator failure. I had it happen on a CBR600 that I used to own.

It kept burning out headlight bulbs, one after the other. Then it cooked the battery. (rotten eggs!! P.U.!! [img]i/expressions/face-icon-small-shocked.gif[/img])

After I replaced the battery, my multimeter was reading 21 volts @ idle @ the battery!!!! [img]i/expressions/face-icon-small-shocked.gif[/img][img]i/expressions/face-icon-small-shocked.gif[/img][img]i/expressions/face-icon-small-shocked.gif[/img]

 

There is no voltage regulator. They use the battery for that. That's why you can't run 'em without the battery.

 

There has to be a voltage regulator. Now they can use the battery as a load regulator but the alt has to have regulation to control the voltage. The battery will not do that.

4060133 RECTIFIER,LR-37

That converts AC to DC and also limits the voltage.

 

You have a bad battry and/or a bad ground.A cell bad in a battry will cause a power surge blowing all the bulbs.A loose main ground will do the same thing.

 

on my dirt bike, if one light burns out soon after the other one burns out

 

Is there some sort of fuse that could have blown that i need to replace?