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Replace o2 sensor on chevy suburban

Can I replace the Oxygen Sensor on my 2002 chevy suburban on my own?

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Yes very easy too do ,only need a 24mm ring spanner

Posted on Apr 25, 2010

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Yes you can,its very easy,get under your truck locate it normally around the cat, unplug it take it out and replace

Posted on Apr 25, 2010

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Yes u can, u may need a special socket, about $10 avail from any auto parts store.

Posted on Apr 25, 2010

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Anrez, your 1991 Chevy trucks O2 sensor could be located in the Y pipe just ahead of converter or in the front portion of the converter.
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How to change upstream o2 sensor on 2008 chevy uplander 3.9l ?


  • 1 Warm up the engine for about four minutes to bring it to operating temperature. Then turn off the engine. This will avoid damage to the exhaust pipe threads if that sensor has seized to the pipe.
  • 2 Find the oxygen sensor or sensors you need to replace. The upstream sensor is located near the exhaust manifold and the downstream sensor on the back exhaust pipe, close to the catalytic converter.
  • 3 Disconnect the oxygen sensor electrical connector. Depending on your particular Chevy model, both sensors may be disconnected from the engine compartment.
  • 4 Lift the front of your Chevy model to reach the sensor you need to change, if necessary. Use a floor jack and two jack stands to support it.
  • 5 Remove the oxygen sensor using a box-end wrench or a ratchet and oxygen-sensor socket.


  • Read more : http://www.ehow.com/how_5159092_replace-oxygen-sensor-chevy.html

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    What does the oxygen sensors look like in a 2003 Chevy Venture (warner Brothers Edition) ? How many are there? Where are they located? Can you show a picture of them in place? How do i replace them? Chevy...


    There should be an O2 sensor before and after the catalytic converter on your vehicle, so it will have 2 sensors. You'll need a 7/8" open end wrench or an O2 sensor socket to replace them.

    It'll look something like this: http://www.carsteering.com/data/all_images/48-01718.jpg

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    zjlimited_210.jpg

    Fig. Fig. 3: Oxygen sensor-4.3L engines


    zjlimited_211.jpg


    Fig. Fig. 4: Oxygen sensor-5.0L and 5.7L engines





    zjlimited_212.jpg



    Fig. Fig. 5: Oxygen sensor-7.4L engines




    Oxygen sensors are always numbered like this:
    Bank 1 sensor 1
    Bank 2 sensor 1
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    Some manufacturers use a kind of shorthand that reads different, but means the same thing:
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    Sensor 2/1 or O2s 2/1
    Sensor 1/2 or O2s 1/2
    Sensor 2/2 or O2s 2/2

    Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
    On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.

    Sensor 1 is always the upstream sensor (the one located BEFORE the catalytic converter)
    Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.

    Hope helps (remember to rate this).



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    Are there two oxygen sensors on a chevy suburban or four its a wheel drive with a v-8 our


    Hi, if the suburban is 1996, or newer, you will have 4 O2 sensors. The sensor mounted before the catalytic converter, is sensor 1, and the sensor after the cat, sensor 2. These can also be referred to as pre, or post. The driver, or left side of the engine, is bank 1, as the passenger, or right hand is bank 2. years prior to this, use 1 O2 sensor. Good luck...Coop

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    Are there two oxygen sensors on a chevy suburban or four its a wheel drive with a v-8 our


    Hi, if the suburban is 1996, or newer, you will have 4 O2 sensors. The sensor mounted before the catalytic converter, is sensor 1, and the sensor after the cat, sensor 2. These can also be referred to as pre, or post. The driver, or left side of the engine, is bank 1, as the passenger, or right hand is bank 2. years prior to this, use 1 O2 sensor. Good luck...Coop

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