when i shift into gear from a long ride or when the motor is hot, my car slams or grinds into gear what could this be? maybe just a linkage adjustment? because if i shut it off and leave it in gear there is not problem or when i first start it in the morning and put it into gear its fine, or let it cool it engages fine. Its only when i put it into neutral when its hot and then put it into gear. please let me know so i can fix this.