ive got a 1997-1998 volvo s 90 which has given me a few problems this yr but has been resolved except for the problem of my gas guage. its pretty much always giving me a reading of 3/4 to full at all times, even right before i fill gas of 17-18 gallons. i now use one of the gauges that tells me my distance since the last gas fill up. once i hit around 230 miles i fill all the way to ensure that i have at least 230 miles of driving till my next fill up. im not sure if its the guage - electrical problem or the floater, that has to be fixed or replaced. any help would be great.