Pls, wat could be the cause(s) of my car's hesitation in moving forward (or inability to load ) on Drive gear after reversing out of my compound every morning, until I pull the gear fully backward to (1). After dis the moves then I push upward to d drive gear before the hesitation stops

Secondly, after d morning encounter, the ride performs well throughout the day, except that it also finds difficulty in climbing a relatively high hill.

The gear mecho told me its a gear pump problem, this I've fixed, but no changes at all.

Pls do help me out