Q: transmission not engaging in drive on 1998 Mercury Grand Marquis

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
transmission does not want to engage forward. will slowly slip in . after it shifts twice, then it runs much better.
goes into reverse ok. what can I do?
(1) Answer
The only thing you can really do without a diagnosis and potential repairs is to service the transmission. This means not only change the fluid in the pan and replace the filter, but also flush out the fluid in the lines and through the torque converter as well.

Once you change out all this fluid and the filter, you will have an accurate assessment of what is in the pan that may be debris from mechanical issues.
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