Yes, the voltage is a couple thousandths high cuz i have a 170 degree thermostat. I was thinking at first that maybe I had an air pocket that developed while at open throttle, but if i wait and let the idle return to normal all I have to do is step on the gas and it does it again. By rough idle its not low or anything its just rough and a little embarassing. The rough idle also coincides with power loss. It doesn't get worse when I press the brake. The exhaust also gets louder while I'm driving until I cut the car off for a while or let it sit for a few minutes.