sluggish acceleration

I have a 2002 Impala 3.4l and it seems to have an acceleration/power problem.

It accelerates very slowly from a stop or at any speed. To get it to keep up with traffic it revs quite high. The motor seems to be working quite hard for normal driving.

Sometimes up hill it wont accelerate even when pushed too the floor but it revs up.

It also seems to be using alot more fuel then normal.

Any ideas?

Thanks.

Have your catalytic converter checked .

Have your catalytic converter checked .

My first thought exactly...

Someone correct me if I'm wrong but doesn't GM actually have a recall on the cats, as long as the cat. is the problem and the vehicle is under 100k miles? I believe I read that somewhere in AF...

Yep that was is, thank you guys very much.