I have an imported from japan automatic mitsubishi car. The problem of the car is that when i'm driving it, after a while the "N" or neutral signal will start blinking eventhough i'm still in "D" or drive. And after a complete stop and after i shifted the gear to D, the car accelerates very slow, so slow that it is not capable of going over small inclines on the road. But after i press the acceleration pedal long enough and when (i think) it changes to 2nd gear, the car will now run smoothly and fast until after another complete stop wherein it will run very slow again which is not normal. This problem disappears when i turn off and start the car again but the problem returns after the car is accelerating for a few seconds or minutes. But the car runs normally or smoothly when it is in 2nd gear, but it has difficulty in 1st gear.
I have already gone to an automatic transmission specialist in Kamias, he changed the atf and said that i have to fix the electronic connection between the transmission box and computer box.
A mechanic in banawe said that my transmission is broken and i should replace it.
Another mechanic in makati said that the "screen?" of the transmission should be cleaned in order for the atf to flow more freely.
My questions are: whats wrong with the car and where can i go to fix it?
Any help is much appreciated. This is my first car and I don't know anything about cars. Thank you in advance.