fallwood

While messing under the bonnet today I gave the throttle a little blip (as you do) to make sure the new filter id installed was fitted correctly, the engine seems to lurch about a fair old bit, more than any other car ive had. No banging when I stomp the accelerator from set off but i can feel the car kind of wobble when I rev the car whilst sat in it. I did have it fully checked out when I bought it at an independant garage and all was fine, cant see that any of the mount are shot but need to get it on a ramp for a better look. Is it normal for a scooby engine to lurch around a bit more than normal or does it sound dodgy.