i was driving home from the shore today i was in third gear and my tach spun all the way around and pegged itself past the trip mileage on the other side of the peg. it would wind back to almost what would be 8,000 rpms on some of my shifts, but otherwise nothing. thankfully i know the car just by sound and gear since i've been driving it for 8 years. checked the fuses nothing looked blown. has anyone ever had a similar problem?