electrical problems

Hello, I have an interesting problem. When my 2017 Mustang GT is parked/off and it is raining outside, for some reason my headlights may or may not turn on. I have tried a couple things like placing the headlight switch in the "off" position rather than keeping it in the "automatic" position...

I noticed my tps and other sensors like iac and others are giving a 12 volts read on my multimeter with key-on instead of the usual 5 volts it goes as high as 18.5 volts with car on! I'm guessing those ("missing") 5 volts show up eventually when I turn the car on? But wait , how can that be... I...

The speedometer quit working years ago when my grandparents owned the car. They bought it new. About 2002 my grandfather took it to get inspected and it quit working after the inspection. I have change out the gears a couple of years ago, but I don't remember seeing the burned connection...

Ok guys im going to try and explain this as best as I can my 1993 mustang gt is acting crazy!! So for the past week or so ive had a few electrical issues nothing I was to worried about. A few examples are my dome light went out. My headlights flashed once and about a month ago my headlights went...

Hey guys, My 1990 Mustang is having electrical issues. It starts up and ides just fine, But whenever I go over a bumpy road or hit an ok sided bump the car dies. when I go over small ones, the rpm gauge starts dropping and bouncing back up and the lights in the dash dim. However, the headlights...

I just bought a 2003 mustang gt three weeks ago and I have been chasing an electrical gremlin. the person before had spliced in a custom alarm system and I found the tail light fuse was blown. some of the things that I have noticed is when the car warms up the battery light comes on. had the...

So I have an 86 with a 91 motor, the gauges didn't work when I got it so I replaced the cluster and fuses, now the gauges work (dash lights still not working) but the fan doesn't kick on and the coolant temp gauge pins to hot as soon as I turn the key, it's not the sensor because I've unplugged...