How hard is it to replace the front O2 sensor? Any advice on the best source for parts (do I need a OEM part or is there a source for aftermarket parts)?

 

I would use our site sponser fcp groton, great prices and super fast shipping, mention your a member of volvoforums and you will get 10% doesnt get better than that....I ordered a replacement timing belt kit on monday had the parts tuesday how quick is that???? replacing the sensor is pretty simple but are you sure that your sensor is bad?? I would before ordering the part make sure that your sensor is bad....post your results please

 

How does one test an O2 sensor?

 

go here and watch this video: http://www.youtube.com/watch?v=vdn4Dk5PSwc or this video which is more to date and easier to do: http://www.youtube.com/watch?v=1mb4VmDd0ao it's the same idea with a volvo, doesn't matter what type of vehicle you have when your testing the sensor.....hope this help, please post your findings so that it may help others on this site!!! good luck!