I have a 1996 Taurus G sedan. It has just hit 80,000 miles and it started about a year ago. When i started it up and put it in drive (its an automatic) it went through first Then it gets stuck in neutral. Then have to rev it to 4,500 RPMS to "clunk" into 2nd gear. But after it warms up after 5 minutes the car drives like new and doesnt do it anymore. Please help.