you go to the parts store and buy new locks for your doors.
Buy the Haynes Repair Manual for that vehicle
The grand Cherokee is a body style, sport is a trim package that is used on all jeep models(wrangler, Cherokee, grand Cherokee, patriot, ...)
Jeep Cherokee XJ 1984-1996 should interchange Jeep Cherokee XJ 1997-2001 should interchange
In the fuse center located behind the passenger side kick panel for a 1997-2001 Jeep Sport you will find the fuse/circuit breaker for the power windows and power door locks located in position number 28.
The fuel pump is in the gas tank on a 1999 jeep Cherokee sport.
Yes, they are the same vehicle, the sport is just a option package.
No
Auto: AW4 manual w/ 4cyl : AX5 manual w/ 6 cyl : AX15
The auto uses Dextron. The manual uses 75w90 gear oil.
Automatic uses Dextron III Manual uses 80w90
Yes
no. the wiring and computers are different.