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Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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24,240 Posts
If you don't have any fault codes for input (turbine) or output speed sensors (TCM codes 56 and 57), I would leave them be.
The magnetic tip does collect 'fuzz' and this can trigger fault codes and limp-in as the TCM gets a fuzzy rpm reading. It needs to see a sharp square waveform. Clean the tips and reinstall. I hope that the upgraded software in the replacement TCM cures the problems.
One sensor has course threads, the other has fine threads so they can only go back in the correct hole.
 
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