every time i get on the highway and shift into 5th, i hear a sqealing noise, also when i try to downshift from 5 to 4 the shifter feels stuck and it wont move. i can hit it up a little and it is free but it wont find 4th gear until i i go into 3rd and then into 4th. sometimes when i coast up to redlights it make the noise as well. everything is peachy until i get on the highway and try to downshift. i drive it everyday to work and such, but i never have to go in 5th. it seems fine until highwaytime. btw it shifts from 4 to 5 fine when i get on the highway, but that is when it starts making the noise. please help.