I've recently bought a used car (a Chevrolet Kalos 2007), with only 45000 miles. However after about a month of driving, my car just randomly started to rev high and not accelerate. Basically, I can put my foot down on the accelerator and the car just revs high and does not accelerate. There is also a bad smell (of something burnt), I got told that it might be a bad clutch. However, I can shift into gears perfectly fine. The only other problem that I think might be is that my transmission is just slipping. What are the steps I should take to fixing this? Change the transmission fluid? Buy a new transmission?
Any help is greatly appreciated, - Mitch