Some vehicles may exhibit a "buzz", whining", or "moaning" like noise from the transmission when reverse gear is selected. The condition is caused by a resonance of the transmission regulator valve. Our technicians tell us that the repair involves replacing the transmission regulator (aluminum) valve with a steel one.Google+
Car Problem Reports
Dodge Ram Van 3500 Transmission Noise From Regulator Valve System
Dodge Ram Van 3500 Problem
Drive Train Affected: Automatic Transmission
Average Mileage: 89,500 mi (88,000 mi - 91,000 mi)
Visitor, 1999 Dodge Ram Van 3500, 88,000 mi
Often when put in reverse you hear a grinding squealing noise. Never when I take it to the transmission shop. Just home in the drivewa.