Hi! I'm posting this for my neighbor. He just bought a 2001 PT Cruiser and the only thing wrong with it is that the gas gauge doesn't work right. When he first turns it on the gauge goes up to about 3/4 tank (regardless of how much fuel is actually in the tank) and then after a few seconds it drops down to nothing. Of course the first thing I suspected is that the sending unit in the tank must be bad, but the previous owner told him that was recently checked out and is supposed to be fine. He was told that this is a pretty common problem with these 2001 Cruisers. Does anyone have any suggestions as to what this may be? Thanks!!