How many 02 sensors r there and location

2006 CADILLAC DEVILLE DTS
85,000 MILES
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ASMITH48
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  • 3 POSTS
Location and name of 02 sensors
Apr 20, 2012 at 5:16 PM
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HMAC300
  • ✓ASE Certified Mechanic
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there are 4 there are 2 pre and 2 post the pres are in front of converters and posts are after
Apr 20, 2012 at 7:40 PM
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ASMITH48
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We change 3. 1 upfront. 1 b4 & after cat contvr. Wheres 4th one
Apr 20, 2012 at 7:53 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
my mistake there are 3 sorry
Apr 20, 2012 at 8:03 PM
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ASMITH48
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  • 3 POSTS
Great thx
Apr 20, 2012 at 8:05 PM
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