It has occurred to me that, when driving in hot places and along an uphill uneven road, the car won't go over 50 mph and the engine starts vibrating as if were about to stall. In two opportunities, my Rav did not move any more but the engine kept working. After waiting for 20 minutes, I started driving normally, but still with the problem appearing on uphill roads. After changing the fuel pump, the vibrating of the engine disappeared but the speed still won't go over 50 mph when ascending. Something new now is that, when the car is stopped, it sometimes shakes as if it wanted to stall. I personally believe it has something to do with the fuel system.

I own a vehicle year 1997 and know the fuel filter needs to be changed but my problem is I do not know where it is located. Can someone please inform me?

Starting engine take a bit to kick over have changed fuel pump oil filter spark plugs cleaned air filter when over the top of it replaced almost everything please help!!. . .