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Jared D
Jared D, ASE Master Mechanic
Category: Transmissions
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Experience:  Shop Supervisor at County Fleet
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2011 gmc terrain with the following codes P0717, p0776,

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2011 gmc terrain with the following codes P0717, p0776, p2723, p0700 and the transmission has no reverse gear

Those codes indicate an internal transmission failure. You should start by checking the fluid level and check for presence of metal in the fluid.

If the level looks ok the transmission will likely need to be diagnosed for an internal failure.

Do you have a capable scan tool to check for communication with the transmission control module?

Please let me know if you need additional info.

Please don't forget to rate.

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