Q: transmission whines loudly in 1st gear and reverse, will not move in reverse. on 1999 GMC Yukon Denali

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
will move in 1st and then runs fine and sounds fine after shifts to 2nd. what are possible causes and likely fixes.
(1) Answer
(4) Comments
Lo/reverse clutch worn, internal fluid leak in clutch apply circuit, let a trans. tech check it out but prob. no easy or external fix, worth a look though. Good luck!
There are a couple of tricks that might work but you need a transmission mechanic to check it not a trans. chain store.
Most places just want to swap it out, may need that but it is worth a look first!
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