Regulator valve may cause noise when transmission is in reverse on Dodge Ram 1500

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.

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Average mileage: 140,900 (62,000–230,000)
Drive Trains affected: 2WD, 4WD, Automatic Transmission
8 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001
17 people reported this problem
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Viewing 1 - 7 of 7 problem details
1997 Dodge Ram 1500 - 4WD 88,000 mi,
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.
1996 Dodge Ram 1500 - 4WD 107,000 mi,
when i put the transmission in reverse it makes a whinning rattling sound
loud grinding noise when in reverse and engine somtimes stalls. drives ok in all other ranges
2001 Dodge Ram 1500 - 2WD 86,000 mi,
My truck makes a low, moaning noise when I put it in reverse. It seems more noticeable since the outside temperature has dropped.
2001 Dodge Ram 1500 - 4WD 165,000 mi,
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.
My transmission whines while stopped in part but when in reverse it whines and resonates like crazy.