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There have been reports of transmission issues in the 2011 Mazda CX7 related to the reverse function, possibly caused by problems with the valve body or low fluid levels. The valve body is a crucial component that helps an automatic transmission work properly by directing hydraulic fluid to engage the appropriate clutch pack for the chosen gear. Signs of a faulty valve body may include hearing unusual noises when braking, experiencing difficulty reversing or moving in reverse, and encountering frequent slipping of the gear shift during changes.
The planetary clutch and gear setup requires replacement.
The planetary gear assembly requires replacement because a gear has become detached from the main unit.
There have been recent complaints about a lack of reverse transmission functionality in the 2011 Mazda CX-7, which may stem from either valve body malfunctions or insufficient fluid levels.