Yes, an electrical load drops my rpm from steady. It goes down and oscillates a little bit. The battery is somewhat new and the problem existed before and after the new battery installation. The alternator is charging the battery, with about 14.5 volts going to the battery. So, I know that it is working, but perhaps it should be working better? I see my engine is grounded in one place to the chassis. I am not sure what else is grounded.

Yes, the brakes too load down the rpm at idle. All hoses seem to be connected and not cracked. I don't hear any noises - although I have not used a doctor's scope.

No squeeling sounds. But, at initial cold start I hear rattling-type sounds that go away once warm.

Any more suggestions or how to test?