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98 Contour O2 sensors #61509 05/23/02 05:10 PM
Joined: May 2002 Posts: 1 Vermont T Tim O OP Junior Member
OP Tim O Junior Member T Joined: May 2002 Posts: 1 Vermont	1st: How many O2 sensors on the V6? I have had the 2 lower replaced and 1 upper. Now the other needs changing. How bad of a job is it to replace the upper one next to the firewall? 2nd: What are pre-cats, I read another thread regarding these. How many of these are there? 98 Contour Sport V6 auto, 83k miles TIA Tim

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