Isuzu Repair: Isuzu Automatic Transmission reverse gear problem, isuzu crosswind, transmission leaks

Question
I have a 2001 Isuzu Crosswind XTO that I recently changed it's transmission due to gear problem. After it was replaced, I am having no more problem with all gears except in 'Reverse'. It has difficulty running backwards specially on a tilted road but most of the time it wouldn't run or if engaged in reverse, it would give a loud jerk upon stepping some gas. Actually, I already experiencing this even before the transmission were being replaced. After a some series of road tests, the problem in Reverse was not solved and so, another transmission was being installed but that still did not fix the problem. Do you think transmission leaks could possibly be the cause or do you have any idea about this problem?

Answer
Low transmission fluid might be the problem. It could be anything from your solenoid to your transmission range sensor Emmanuel. Honestly automatic transmissions are so complex that they need to be serviced by a highly qualified professional. I would be lying to you if I said I knew exactly what it was. But I would start with a voltage test, and the fluid. I am sorry I couldn't be more help but I will try to point you in the right direction. My job here is to either help you fix your problem or know somebody that can fix your problem okay?