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: 44,466 (400–132,000)
Drive Trains affected: 4 Speed Transmission, Automatic Transmission
7 people reported this problem
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When in gear it makes a whining noise. So far all jeep has told me was that they are aware of the issue and are working on a resolution.
sounds like I have the same problem, I will be contacting the dealer tomorrow. I will try to follow up with there answer.
I have a winding and or grinding in reverse with no engagement doea not take reverse what could it be please help 1998 jeep grand cherokee laredo 4.0