I hate electrical problems, they drive me nuts diagnosing. I am thinking I might have a good clue that someone here could help me figure this out on my 95 wrangler.
When I turn on my headlights my oil / charging gages goes dead, the needle goes to 0 & the dash light does not even come on for these two gages. My temp & fuel gage work fine when I turn on the headlights.
Now for the clue, when it is raining everything works fine ! I have had this problem for a few weeks & I thought it was a coincidental when they worked in the first rain. Then for a week it was dry, they didnt work. Today we had rain & my gages worked fine with the headlights on !
I went down a washboard road thinking if it was a loose wire they would come on with the headlights on, no luck, they didn't even flicker. But this morning with the rain everything worked fine. They work fine if the headlights are not on.
I'm guessing it's a grounding problem ? Any ideas ?
Thanks in advance for any advice.