O2 Sensor - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 05-10-2006, 01:26 AM   #1
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Default O2 Sensor

I'm getting some graduation money since graduation is soon here, and i'm wondering if my o2 sensor needs to be replaced....

a while back, when my guage was on 1/4 tank full, i had about 330 miles on the trip meter, now i get about 270

i did put my finger down the exhaust tip yesterday, and came out with this

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time to replace? it'* never been replaced after 112,000 miles
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Old 05-10-2006, 01:59 AM   #2
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Optional. Pull your o2 and see how crappy it looks. you can clean itwith a propane torch for a short term fix sometimes. Why does that pic look like it'* infra red?
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Old 05-10-2006, 02:08 AM   #3
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112K on the car the O2 is prolly soon to be on it'* way out the door.

I wish I could get 330 miles and still be at a 1/4 tank.

I hit 330 and I'm prolly pushing the damned thing into the gas station.
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Old 05-10-2006, 10:29 AM   #4
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I would say it'* time for a new one,, and go with a AC Delco one when you do!!!!!!!!
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Old 05-10-2006, 04:07 PM   #5
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Quote:
Originally Posted by MyLittleBlackBird
Why does that pic look like it'* infra red?
its my camera phone.....its not very good
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Old 05-10-2006, 05:42 PM   #6
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that gotta be all highway numbers.
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Old 05-10-2006, 06:56 PM   #7
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i drive 24 miles of highway and about a mile of streets every day
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Old 05-10-2006, 10:09 PM   #8
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is there anything i need to be careful of when taking out the o2 sensor?
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Old 05-10-2006, 10:35 PM   #9
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The sensor should come out easy...

If you are planning to reinstall make sure you use some antisieze on the threads...

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Old 05-10-2006, 11:35 PM   #10
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You do not need to buy the special tool if you are replacing it.
Snip the wires and use a deepwell, or if its pesky, a 14in pipe wrench will make it behave.
Just use a box end wrench to install it.

You also might want to check you fuel pressures before doing the o2, running rich would kill a new o2 fairly quick.
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