My wife drove her car to work today and it was still acting up on the way to work, but hse just got home and everything was fine. Being that a cable is mechanical, could the cable be bad out of adjustment one minuteand ok the next?

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member