Problem Description and Possible Solution
A loud buzzing or whining when the transmission is in reverse may be caused by a regulator valve in the transmission valve body. A revised valve was released that does not resonate. Careful diagnosis should be performed because other causes can create the noise.
Average mileage: 140,900 (62,000–230,000)
Drive Trains affected: 2WD, 4WD, Automatic Transmission
17 people reported this problem
1997 ram 1500 4X4 318 automatic (duh) makes a weird noise when in reverse. Noise is worse when moving, a loud whirring or whining noise. Transmission has begun to slip in reverse also. Truck seems to pulsate like the motor is missing but in any forward gear it is smooth running and no shift problems. I have not tried to repair as of yet.
Reverse makes buzzing and feels like it doesn't want to back up, , like I'm pulling a dump truck in reverse. Now it won't shift out of 1st gear in drive.