Reverse had been taking longer and longer to engage on my SDL. When I got the car it took about 2 seconds, and doing a transmission service didn't affect it. This past month the delay had gotten worse. Today when I pulled into work after getting on to the highway I had no reverse at all

What should I check now? The fluid is clean (and slightly overfilled, I'll be fixing that tonight).

Thanks,

-Jason

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.