6.2 Escalade Oxygen Sensor help
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Cadillac Escalade, EXT and ESV Forum - 2007-2014 Discussion, 6.2 Escalade Oxygen Sensor help in Cadillac Escalade Forums; I'm replacing my 02 sensors and I'm wondering what part numbers, how many and where can I get them? Thanks ...
  1. #1
    TabletDash's Avatar
    TabletDash is offline Cadillac Owners Member
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    6.2 Escalade Oxygen Sensor help

    I'm replacing my 02 sensors and I'm wondering what part numbers, how many and where can I get them? Thanks

    I've been told there are two then someone else said 4..... I've heard upstream and downstream

    UPSTREAM

    DOWNSTREAM

    Also what make should I be looking for? Thanks

    ----------

    Brand not "make"

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    wesyder's Avatar
    wesyder is online now Cadillac Owners Enthusiast
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    Quote Originally Posted by TabletDash
    I'm replacing my 02 sensors and I'm wondering what part numbers, how many and where can I get them? Thanks

    I've been told there are two then someone else said 4..... I've heard upstream and downstream

    UPSTREAM

    DOWNSTREAM

    Also what make should I be looking for? Thanks

    ----------

    Brand not "make"
    There are 2 before the catalytic's and 2 after, so 4 total

  4. #3
    TabletDash's Avatar
    TabletDash is offline Cadillac Owners Member
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    Re: 6.2 Escalade Oxygen Sensor help

    Ok and I'm guessing the two before are called upstream

  5. #4
    wesyder's Avatar
    wesyder is online now Cadillac Owners Enthusiast
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    Quote Originally Posted by TabletDash
    Ok and I'm guessing the two before are called upstream
    Roger that

  6. #5
    Tec80 is offline Cadillac Owners Fanatic
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    Re: 6.2 Escalade Oxygen Sensor help

    Watch out for the brand of replacement sensor, some aftermarket sensors have a slightly different calibration and will make the engine run slightly richer or leaner, depending on which way they are off. Ran into this with a replacement Bosch Oxygen sensor vs. OEM AC on my GN about 20 years ago. The Bosch ran too lean and caused driveability issues.

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