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View Full Version : Car "jerks" when I shut off?



thehedgepig
01-10-2009, 09:01 PM
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!!! /duh

miller
01-10-2009, 09:06 PM
like it 'lurches' forward? mine does it occasionally too, as if the torque converter is releasing energy?

elnevio
01-10-2009, 09:15 PM
Could be overfuelling on overrun. Do you have a VTA BOV?

thehedgepig
01-10-2009, 09:19 PM
like it 'lurches' forward? mine does it occasionally too, as if the torque converter is releasing energy?

Yip, just like that!

thehedgepig
01-10-2009, 09:19 PM
Could be overfuelling on overrun. Do you have a VTA BOV?

I don't think so.....

miller
01-10-2009, 09:35 PM
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
01-10-2009, 09:53 PM
Do you have a noisy dumpvalve fitted?

thehedgepig
01-10-2009, 10:00 PM
Do you have a noisy dumpvalve fitted?

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

Turbo_Steve
01-10-2009, 10:08 PM
But the spring may be getting weaker now. Or your airfilter dirtier ;)