wiper problems

[Precious]

so one of my wiper blades aren't working anymore. I put it back off the screen and it has no tension what so ever so when i use it it flys off the edge of the car lol. Any ideas if i need to reply the whole blade or if i can just fix it

[mike.perry]

Do you mean it does not wipe backwards and forwards or does it not stay on the screen?
If it does not travel across the screen it is usually because the rack is loose in the wheel boxes. You need to remove the inst panel and glove box liner and you will see the rack with the wiper wheel boxes. Tighten the nuts on either side of both the wheel boxes which will stop the wiper rack from moving which is the cause of the problem. Also check the nuts on the outside end of the spindles and the wiper arm clamping nuts.
If the wiper blade is not staying in the screen it is because the spring is too weak and the arm will need replacing. Series MM arms and blades are a different design to the later blades.