[jonbrydon]

I've had my V70 for 5 years, an excellent car. Unfortunately, recently it has become very lumpy when I turn it on, this is especially worse in very cold weather. For example, the other day it felt like it had a spark plug off!! There is also a noticable lack of general power at the lower speed -any ideas??

 

[mullencragg]

Best visit a garage for a diagnosis. I had some lumpiness in my V70 D5 engine which I put down to bad fuel. Also, I noticed that if I left the ignition sequence to finish (all lights off etc) it ran smoother - probably nothing but maybe fuel pressure was a problem.

Cheers