o2 sensor replacement
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Senior User
Joined: Feb 2004
Posts: 250
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From: Nanticoke
o2 sensor replacement
its well known what a pain it is to get ford o2 sensors out and is recommended from anywhere from 50k to 100k, anyway, is it even worth replaceing if the check engine light isn't on? or save $50.
Posting Guru
Joined: Feb 2000
Posts: 1,100
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From: Wichita USA
I have 150k on the 89 O2 sensor. Everytime I have checked it on a lab scope it was still responding fast. If yours is slowing down in response time it will cost you gas milage and not set a code. Only way to tell is test it or change it.
