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How Many O2's?

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Old 03-24-2012, 12:58 PM
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Default How Many O2's?
I am thinking of replacing my 02's because the mileage is getting up there on them. how many are there and where are they on an 04 4.7l? thanks
 
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Old 03-24-2012, 01:30 PM
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Yours should have three if memory serves me correct. Two up streams, one in front if the left cat and one in front of the right cat. Then one rear down stream behind the third cat.
 
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Old 03-24-2012, 03:07 PM
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do you know who manufacturers the original equipment?
 
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Old 03-24-2012, 05:20 PM
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I believe Denso is made/makes Dodge's o2 sensors.
 
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Old 03-24-2012, 06:25 PM
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thanks. i have looked at a few parts sites and they seem to say there are 4 sensors, 2 on each site upper and lower. Is that right?
 
Last edited by Dodgeboy77; 03-25-2012 at 12:06 AM.
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Old 03-25-2012, 01:34 PM
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I believe you only have three.
 
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Old 03-25-2012, 02:08 PM
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I would just crawl underneath and look, there is at least one after the cat and possibly one or two in before the cat in the pipes before they connect
 
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Old 03-25-2012, 02:38 PM
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there are 4. i don't know how you get at the top passenger side, though.
 
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