Just noticed this yesterday when I was checking fuel pressure. I reved up the motor in neutral and the mph went up on the speedo. Never noticed this before.

 

I am guessing that you have something out of wack. Unless it affects while driving or makes other problems, no real isues that you should be worried about. I never looked, so have no idea if my car ever did the same thing.

 

Thanks and I never noticed it before. I am just chasing down a few gremlins right now with a hanging idle and running lean condition and just paying more attention to things.

 

It's normal...mine's always done that! It's VERY common on our cars.

 

it happens in random other brand new cars too, something with the signal.

 

Thanks for the help. Just never noticed it before.