1994 explorer help

[wildgiz]

I have a 94 explorer 4.0 runs great, sometimes i will be sitting at a light or something it starts idling funny and the voltage on the dash drops and it just idles bad. I hit the gas or start driving it goes away. i have tried to find out something about this can not locate, it is driving me crazy.

 

[jg09]

There are a few things that could cause your rig to do this. A bad ground somewhere, a bad alternator, or a bad battery could cause this.

 

[Anime]

The alternator brushes are probably worn down, or the voltage regulator is starting to go. Either way, a new alternator or a rebuild should fix the issues. I'd suggest saving the voltage regulator on the alternator in case it is good, if you exchange it for a new/rebuilt. The stock Motorcraft regulator is a lot better than some aftermarket stuff.

 

[joe t]

I had the same issues with my 94 was driving me nuts what it turned out to be was a bad coolent temp sensor that at stop lights it would start acting up
not to be hot enough and kick back to warm up mode changing the senser solved it who would have thought.