Originally Posted by Senrab62

If there are not fragments in the shifter, I would also suggest that you try an ultrasonic cleaner if you have access to one. Then use WD40 to flush, then Triflow, then something like Tenacious. Also, the canned air or compressor info is good also.

I utilized a similar system and was able to get full functionality after some time and carcinogen containing chemical exposure! Sometimes, they might have just kicked the bucket though. Good luck and let us know.