1999 Ford Contour Oxygen Sensors

Suggested Repair

Replacement is not especially difficult, but remove the oxygen sensors carefully because the threads can strip. Heating the sensors before removal is the best way to reduce that risk.

Conversation Summary

The owner asked whether changing the two oxygen sensors on a 1999 Ford Contour—one before and one after the catalytic converter—is difficult. The expert said it is not really difficult, but advised careful removal because the threads sometimes strip, and recommended heating the sensors first.