Clutch sliding RPM problems

[Bigu Tiron]

I have a 2010 Auris 1.4D manual gearbox and in every gear I am in at 2000 RPM, when i accelerate it goes to 3000-3500 RPM and then goes back to 2000 RPM. I changed the clutch kit as it was worn out very badly, but this didnt fix the issue. Many mechanics say it can be from the EGR, DPF or Turbo but none of them is sure. Anyone has had same experience?  

[Cyker]

Can you find out if yours has a normal flywheel or a dual-mass flywheel? If the clutch is new and it's still doing that, it could be there is surface contamination on the clutch, the wrong clutch is fitted (e.g. the pressure plate isn't pressing hard enough) or the dual-mass flywheel is failing.

I found my dad's old Verso 2.0 D4D had clutch slip if I gunned it and it was the dual-mass flywheel wearing out.