Car "jerks" when I shut off?

[thehedgepig]

If I'm accelerating from about 40mph and I shut off the gas the car seems to jerk as if I have quickly blipped the throttle.... But I haven't!!

Any ideas?

Sorry for the crappy description but its the best I could think of!!!

[miller]

like it 'lurches' forward? mine does it occasionally too, as if the torque converter is releasing energy?

[elnevio]

Could be overfuelling on overrun. Do you have a VTA BOV?

[thehedgepig]

like it 'lurches' forward? mine does it occasionally too, as if the torque converter is releasing energy?

Yip, just like that!

[thehedgepig]

Could be overfuelling on overrun. Do you have a VTA BOV?

I don't think so.....

[miller]

Ive always thought it was the Invecs slow in keeping up with circumstances. It always seems to happen to mine after a long continous run on the motorway. As if it suddenly woken up that its not in 5th anymore.

[Turbo_Steve]

Do you have a noisy dumpvalve fitted?

[thehedgepig]

Do you have a noisy dumpvalve fitted?

I do but have had for 3yrs and this seems to have just started!

[Turbo_Steve]

But the spring may be getting weaker now. Or your airfilter dirtier