How difficult is it to change an O2 sensor in a Chrysler 300? Must it be done by a mechanic?
Apr 5, 2009 at 9:57 AM
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JACOBANDNICKOLAS
✓ASE Certified Mechanic
110,194 POSTS
Disconnect the electrical plug to it and all you do is unbolt it and replace it with the new one. Not a hard job.
May 3, 2009 at 7:27 PM
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