Blasted juddering windscreen wipers

[davemac250]

Ok anyone have any miracle cures for juddering windscreen wipers.

Last third of the upward sweep.

Tried bending the arms slightly, no change.

On fourth set of wiper blades, just changes the pitch of the noise! Have tried PIAA, Bosch, Halfords and eBay cheapo flat blades - which are the best.

Tried rainex.

What next?

[Haytch]

When I had this problem I just changed the blades and it was sorted but this sounds like a different problem, can't help further but someone might be able to.

[geeteeaye]

Toothpaste on the windscreen. I st you not.

[minky monkey]

Mmm. Minty.

[Parrot of Doom]

Have you tried lubricating all moving parts on the wiper? Perhaps it isn't moving with the curve of the windscreen, due to slightly seized joints.

[Ozzie Osmond]

And adding to Parrot's point, if there's wear in the joints this can cause judder.
Have you been changing the whole blade or just the rubbers?
How old's the car?

[TRUENOSAM]

Use glass polish on the screen.

Or maybe fit some blades with the spoiler on if the wipers judder at speed

[sumlin]

It's crap on the screen - probably the gunk that comes off trees. Give the screen a thoroughly good wipe with some degreaser or half a lemon (seriously).

[morgrp]

how much washer fluid do you put in your tank? - Too much leaves scum on the screen (personally I don't use any at all - orange Cillit Bang and a very light scourer removes it - be extremely careful in the type of scourer you use though as a harsh one will scratch the glass - You can buy specific types for the job (normally white in colour)

[sebhaque]

TRUENOSAM said:

Or maybe fit some blades with the spoiler on if the wipers judder at speed

Be careful with this - my VX's wiper juddered before, so I bought a new blade with a spoiler on it. No difference, the blade still juddered - except because the rubber was digging in, the spoiler dipped into the windscreen and left a lovely set of scratches all across it. I don't know how much a VX's windscreen costs to buy and fit but I can't see it being cheap. fking balls.

Got a naked wiper and it's still juddering.

[davemac250]

Cheers all.

I have applied lubricant on the joints of the arm, so I don't think it is that, but will apply some more.

The car is a 02 Saab on 90k.

Has had a new windscreen at some point recently - I've had it 11 months now.

The judder only appears over 30mph, in fact in a left curve it doesn't appear until 45ish, so am thinking it is lift, not from the mechanism.

It had Bosch blades on when I got it with spoilers, but they fouled the windscreen surround at the very top of the sweep - must have been mounted slightly differently on the arm than the others - they were the correct size.

I'll give the toothpaste suggestion a go when I get home this evening.

It is not tree sap, build up of screen wash etc - car is cleaned too often to be these and is not parked under trees with any degree of regularity.