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.
Transmission Noise From Regulator Valve on Dodge Ram Van 3500
Average mileage: 89,500 (88,000–91,000)
Drive Train affected: Automatic Transmission
4 people reported this problem
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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.