socket size o2
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Cadillac Seville / Cadillac Eldorado Forum Discussion, socket size o2 in Past Cadillac Vehicle Discussion; Need socket size o2 replacement for 99 sts bank 2 sensor 1 and whats the best one to buy thanks ...
  1. #1
    jaybee86 is offline Cadillac Owners Member
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    socket size o2

    Need socket size o2 replacement for 99 sts bank 2 sensor 1 and whats the best one to buy thanks for your help

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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: socket size o2

    I believe O2 sensor sockets are all the same size.

  4. #3
    Aztec ETC ECS's Avatar
    Aztec ETC ECS is offline Cadillac Owners Connoisseur
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    Re: socket size o2

    Could use a 22mm or 7/8" wrench in some cases.

  5. #4
    jaybee86 is offline Cadillac Owners Member
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    Re: socket size o2

    Thanks guys on my way out to see report back in a few

  6. #5
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
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    Re: socket size o2

    you might be able to "rent" one for free -
    from AutoZone - or other big chain stores -
    with the loan-a-tool program

  7. #6
    jaybee86 is offline Cadillac Owners Member
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    Re: socket size o2

    Ok it didn't work pb blaster nothin worked ideas?

  8. #7
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    They can be TIGHT. Have a long breaker bar? (Assuming you have the socket)

  9. #8
    Aztec ETC ECS's Avatar
    Aztec ETC ECS is offline Cadillac Owners Connoisseur
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    Re: socket size o2

    I don't suppose you have room for the double wrench: (assuming you're wrenching)



    Sometimes the open end slips or rounds it and the connector won't fit through the box end leaving you one choice. Cutting the connector off. But then you are committed!

    I have seen a few that needed torching but very rare.

    You are messin with the one below the waterpump, right?

  10. #9
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: socket size o2

    Quote Originally Posted by jaybee86 View Post
    Ok it didn't work pb blaster nothin worked ideas?
    Start the engine and heat the exhaust manifold a bit.

  11. #10
    Larry is offline Cadillac Owners Member
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    Re: socket size o2

    special socket, O'Reilys, Advance, or Auto Zone sell them.

  12. #11
    carnut is offline Cadillac Owners Master
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    Re: socket size o2

    Buy an Oxy sensor socket, its got a slice out of one side to be able to encircle the sensor wiring the wiring attached, then use a longer breaker bar. Slap the breaker bar, don't just pull on it. New sensors have anti seize on them so they wont bind on the threads.

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