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Q:

transmission shifting on 1999 Chevrolet Monte Carlo

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
wont shift into overdrive
(1) Answer
there is a shift solenoid in the valve body for this but a trans shop with a scan tool can verify this or an internal failure,

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