I have a 1998 Volvo V70 AUTO GLT TURBO Wagon. This afternoon I was driving about 42 mph, when it suddenly shifted down to first gear and wouldn't move out of it. The trans fluid level is adequate. We got this car used in December, and it's our first Volvo. Any idea what I'm looking at as far as what...

My car is a 1998 Volvo V70 AUTO GLT TURBO Wagon with 176,000 miles. We call him Volvo. Not original, but a tip-of-the-hat to one of our favorite Britcoms, "Waiting for God."