I have not done a 5000S, but it might be like my 4000S.
Does yours have a tall cylindrical nut holding the cable to the
transmission? It might have 4 notches at the top to aid you in unscrewing
it so you don't crush it trying to use pliers. Sometimes that nut like to
corrode so maybe some penetrating oil might help.
Or maybe you can detach it from the 02 sensor mileage timer up near the
windshield, if so equipped.
(One out of many daves)
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