@Hash4u, Bro thank you so much for your serious concern towards my issue, I have 1992 super saloon 1.6 Automatic Mitsubishi Gallant. As you say that with OD off the car will shift till 3rd gear, but why do the engine produce such sound that he needs one more gear, I remember that it goes till 4rth, but why do Mitsubishi is giving just 3 forward gears with so much power full 1.6 engine? I'm still confused:( but I will read the car user manual guide, let's see if I can get something from there, between I thank you for your feed backs.
May ALLAH bless you and our beloved country PAKISTAN. (AMEEN)
@alizzz79, Thank you so much for the number, is he a mechanic? between Thank you so much. May ALLAH bless you too.