I've had my 95 k1500 for about 4 months now. When I'm driving it done the road the fuel gauge jumps back and fourth and stops at the half tank mark. Now the oil gauge is starting to jump way past the 80# mark and then back down where it should be. Sometimes when I turn the key off now the oil gauge stops at 25#. If anyone has any ideals I would be thankful to hear them.

Thanks rchobbit

 

sounds like a ground issue, possibly on the right rear of the engine block, that has caused me a ton of issues in the past try cleaning them and I did add another ground wire from the left side battery. hope this helps

 

Cleaned the ground and didn't help. I have found out that moving the wiring harness will make it go bake to a correct reading for a while.