Oil pressure gauge reading high
I have a 1994 ford ranger 5-speed 2 wheel drive with a 3.0l v6.
The oil pressure sensor has been reading a bit high for the past couple of days. When engine is off, gauge pegs at H. When vehicle is cold and driving the gauge stays around the "al" of "normal". When vehicle is warmed up and driving the gauge reads between "normal" and "H". When I use my turn signals, the needle jumps within the range that it's at as does the voltmeter (battery gauge). Gauge drops almost to "Normal" when I shut the headlights off. The needle jumped almost all the way to "H" once, so far, when I had to release the accelerator and step kinda hard on the brake and clutch.
Any ideas? I'm hoping for just a bad sensor but worried it may actually be a bigger problem.