Parking brake applied or stuck on.Incorrect fluid level in trans.
Transmission is bad.
does it shift into reverse and wont drive? if so its your tranny it needs to be replaced
car will jerk forward and then go in reverse
Cause you don't know how to drive
If you shift the gear stick to the right, it is on manual. Then by pushing it forward and releasing you shift up; by pulling backward and releasing you shift down.
Rust, Ice, Something bent,
Simply start the vehicle with the shift lever in the Park position. If you wish to go backward place the shift lever in the R location. When you're ready to move forward place the shift lifter in the D position. Only shift from park to reverse or to drive when the vehicle is sitting still.
The question's a bit vague. If you're referring to distributing weight once you're loaded, it depends on what your trailer has for axles. If you have fixed tandems or a fixed spread axle, you would have to move the load itself. If you have sliding tandems, you can move them forward to shift weight from the drive axles to the trailer axles, or you can move them back to shift weight from the trailer axles to the drive axles. If you have a sliding fifth wheel, you can move that forward to shift weight from the drive axles to the steer axle, or you can move it back to shift weight from the steer axle to the drive axles.
Check fuse for stop lightsStop lights and shift interlock are in a common circuitMove key to 1st position (unlock)Shift to neutral to start vehicle and then you should be able to shift to Drive
usually a linkage problem - adjust linkage that connects transmission to gear shift
A plugged transmission filter can cause your transmission to hesitate when you shift into drive. A collapsed vacuum hose can also cause the problem.
Check to see if the stop lights are working. Shift interlock is the same circuit. If they do not work check fuses and stop light switch. Try turning the key to 1st position (unlock) shift to neutral to start vehicle and then shift to Drive
play in the drive train