It's an automatic car, Nissan primera 2003, with 2000 cc. The problem: I am not sure completely, but I guess is the first gear gets stuck.
When I step on the accelerator(almost at the end of it ), the speedometer goes 20-40km/h and the tachometer goes crazy high, like 5-6 thousands. The engine makes some noise,but not very noisy. The gear box doesn't clunk when I engage it.
All indicators are functional. No oil leak.
Is there anyone know what the problem is. A nonprofessional mechanic let me change a new gear box which will cost more than 2000 New Zealand dollars. It's almost a half of the value of the car. One of my friend tested the car and found that the problem is that the first gear gets stuck.
I need your help. What should I do now? SOS