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Old Dec 27, 2004 | 11:32 AM
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o2 sensor placement?

i have an excursion with a 5.4 and the copmuter codes say sensor 1 in bank 1&2 are badbut i would like to look at them can anyone tell me where they are i know they are in front of the converters but where ? (it's 14 out and i just feal like lying in the snow for an hour to find them)
 
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Old Dec 27, 2004 | 04:39 PM
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so i went under the truck and the sensors looked fine unhooked the bat and cleared the code restarted the truck and the service light went out so i think i'm ok for now
 
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Old Dec 28, 2004 | 11:32 AM
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Post the actual code next time. It could be a different problem showing a O2 sensor code.
 
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Old Dec 30, 2004 | 12:25 AM
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the codes were po155 and po135
 
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Old Dec 31, 2004 | 09:39 PM
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well the codes came back so i changed the two sensors pulled the neg. batt to reset the computer. drove the truck and the service light came back on. now what do i do???
 
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Old Jan 1, 2005 | 09:47 PM
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Are you getting the same codes? Which 2 did you replace? The two next to the exhaust manifolds I hope. You might check for corrosion in the plugs and bad spots in the wiring.
 
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Old Jan 2, 2005 | 02:13 AM
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i'll check when i get back from work
 
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Old Jan 3, 2005 | 11:11 PM
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i went to auto zone to have tham check the codes and the same codes came up when i asked him to clear the codes he said if i get the codes cleared i would faail my inspection next june because the computer will show that a code has been cleared.

i'm seeing red so what the deal
ohya he said the code would clear on it's own after 30 starts
some thing does not smell right
 
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Old Jan 4, 2005 | 11:29 AM
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once it is cleared it should pass. You can always unhook the battery for about 15 min. That should clear them too.
If after about 30 drive cycles, if the problem doesn't reoccur, it will clear itself.
 
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