2004 Vauxhall Vectra • 65,000 miles

When driving my car it feels like it is missing, it judders slightly when I accelerate like it is lossing power.
No lights or error messages are showing on my dash.
A friend has the same car and he said he thinks it is a manifold/swirl valve problem which will cost a fortune.
Please help as I find going to a garage a very daunting thing to do and never know whether to trust certain ones.
Thanks, Naomi
Nu nu
September 5, 2011.

I would do the simple things first, it sounds as if you have a load induced misfire, so I would start with new plugs and leads.

Sep 5, 2011.