Hello Everyone, Recently (probably ever since i got the new alternator) i have been experiancing low voltage when i'm at an idle. The volatge at idle has been roughly around 8-10 volts, and as soon as i accelerate it jumps to to 12-14 volts depending on what is on in my car. I took the car to the place made sure everything was on ok, he insisted that I check the connections. So every ground connection, power connection etc. on my car has been removed, cleaned, and replaced as needed. Still low power at idle. I tightened the belt, check the dash light and everything seems well. I am reading little over 12v at the battery (engine off) and between 10-12 volts at the alternator when running. Anyone have any ideas. I just spent a few hours today running an additional ground wire from the battery to the frame in the rear (just in case). BTW, i have a brand new ac/delco 140 amp alternator. - Shain #10140