Vts Judder

[superstardj01]

Hi all,

 

I know this has been discussed before but all of them seem to be judder through the gears and reverse, but mine only on set off once moving even at 3/4 mph theres no judder at all same in reverse no judder it only happens in 1st gear and only as I set off, it seems to mostly go say 80% when the engine has warmed up and doesn't happen atall if i rev to 1400-1500 revs on pull off, I'm used to driving diesels and have for the last 10+ yrs and with them a small amount of revs gets you going and the torque will pull you along at 15 mph easily so petrol driving is new to me so this could just be a driving style issue.

 

I checked the clutch is ok by putting it in gear with the handbrake on and trying to move the back end squats down quite hard so I think the clutch is ok and not slipping.

 

no fault codes at all.

 

It's a manual VTS 06 82k

 

Any ideas?

Edited June 28, 2017 by superstardj01

[superstardj01]

I've also placed it in 2nd gear revved to 2k released slowly the car stalls, I placed it in 3rd gear revved to 2k released clutch pedal adruptly it stalled adpruptly, so i think the clutch is ok, all gears are easily selected.

[paul.h]

Which engine does your car have ?

 

Whilst the clutch may not be worn out so that it slips, it could still be a clutch problem such as oil on it, uneven wear or wear on the flywheel. It could also be the clutch master/slave cylinders need the fluid changing so they work smoothly - the fluid should be changed anyway every 2 years when the brake fluid is changed since it shares the same reservoir.

 

Other possibilities can include an engine mounting, particularly the one at the back, a drive shaft cv joint, a suspension joint.

[superstardj01]

Its the 2.0 petrol

[superstardj01]

If it was an engine mount, drive shaft or cv joint wouldn't the problem be there regardless of gear speed or temp of the engine?

 

The brake fluid was changed last year not sure if clutch fluid was changed as well? Is it difficult to diy it?

[paul.h]

Most probably it is a clutch problem such as oil on the clutch plate/flywheel and after the car has been first used it is removed a bit so the clutch then works better.

 

To bleed the clutch is easy, similar to bleeding brakes although a bit more awkward since the clutch pushes the fluid back. There is a bleed nipple on the slave cylinder which is undone to let the fluid out. You could just let some run through under gravity, also try pumping the pedal but I find this does not work that well and I use a Mityvac vacuum pump to suck the fluid through. A syringe may also work. Note that the fluid take off on the reservoir is quite high up so the fluid level needs to be kept high to aviod letting air in to the pipes which then makes the job harder without using vacuum. The fluid usually comes out quite dirty compared to the brakes and may be due to wear on the seals.