Hi, can anyone here tells me whether the Nissan Serena 2.0 AT(1998) is a powerless car?
I can hardly feel the power, even if I floor the pedal and rev the car, it is still slower than myvi's normal acceleration.
On highway, from Penang to Ipoh (PLUS), when going uphill a bit, my car's speed will drop from 110 to around 50, even if I stepped hard on the pedal.
Why is that? Is it my engine's problem? My FC also very high, with 40L petrol, I can only drive about 240km, which is about RM0.28/km.

How should I solve this problem? If anyone here knows how to solve this, please tell me, or if this is normal, tell me also, lol haha, thanks

what is top overhaul?

how much would I need in order to do that?