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Thread: TII O2 sensor removal

  1. #1
    Supporting Member Turbo Mopar Contributor
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    TII O2 sensor removal

    I need to remove an O2 sensor on my CSX 2.5 TII and noticed the lack of room vs my 87 TI. I have been spraying with deep creep for the last three days.
    What is the best way to remove from a TII? from the bottom? remove the PS pump?
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  2. #2
    turbo addict
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    Re: TII O2 sensor removal

    Remove head Good luck.

  3. #3
    Supporting Member Turbo Mopar Contributor
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    Re: TII O2 sensor removal

    Quote Originally Posted by GLHNSLHT2 View Post
    Remove head Good luck.
    seriously????
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  4. #4
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: TII O2 sensor removal

    I have a socket which will take a 3/8" drive ratchet. It sounds crazy, but I've been able to get them with this method from atop the car. I can get my hand by the PS pump and everything. I can also get the ratchet back there and get it loose generally. If that fails, I can attempt from under the car with a 3/8" breaker bar. All else fails, the socket also has a 1" hex on it and I use a long pattern Mac wrench on it. Now, in the worst case scenario, I'll use heat, cut the wires and use the 7/8(?)" wrench to give it the final go. I haven't had to pull the head yet. That said, with equal length axles in there you have much less room to operate under the car.

  5. #5
    Supporting Member Turbo Mopar Contributor
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    Re: TII O2 sensor removal

    Quote Originally Posted by cordes View Post
    I have a socket which will take a 3/8" drive ratchet..
    Thanks Brian, if it works I owe you a beer or two at SDAC-30
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  6. #6
    turbo addict
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    Re: TII O2 sensor removal

    I was just kidding about pulling the head a bit. Though it'd probably be easier. I've always just cut the wires and threw a real wrench on it from underneath then used a second wrench to make it longer a pried for all my might. Going wideband I plugged that stupid hole and have my wideband at the 1st small bend about 6" from the donut. So much easier to get in and out of that location if need be.

  7. #7
    Supporting Member Turbo Mopar Contributor
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    Re: TII O2 sensor removal

    Quote Originally Posted by GLHNSLHT2 View Post
    Going wideband I plugged that stupid hole and have my wideband at the 1st small bend about 6" from the donut. So much easier to get in and out of that location if need be.
    Well I want a std O2 sensor for the government importation inspection as the car was purchased from the USA. WB is on the shelf ready to go.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  8. #8
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: TII O2 sensor removal

    i smash the end of the sensor off with a hammer/piece of pipe/improvised weapon from the wheel well.

    then i use a 7/8 short socket with a ratchet and a pipe.

    on my reliant, i use so much antisieze that i can take the sensor out with a short 7/8 open end wrench.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  9. #9
    Garrett booster
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    Re: TII O2 sensor removal

    On my T2 Daytona, I moved the power steering pump out of the way and removed the power steering bracket.

  10. #10
    Supporting Member Turbo Mopar Contributor
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    Re: TII O2 sensor removal

    Quote Originally Posted by Aries_Turbo View Post
    i smash the end of the sensor off with a hammer/piece of pipe/improvised weapon from the wheel well.

    then i use a 7/8 short socket with a ratchet and a pipe.

    on my reliant, i use so much antisieze that i can take the sensor out with a short 7/8 open end wrench.

    Brian
    Yes Brian I know the destructive technique and used it on the original Sundance sensor circa 4 years ago. I was looking for non destructive at this point.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  11. #11
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: TII O2 sensor removal

    I've got high hopes for you if it was out four years ago.

  12. #12
    Supporting Member Turbo Mopar Contributor
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    Re: TII O2 sensor removal

    Quote Originally Posted by cordes View Post
    I've got high hopes for you if it was out four years ago.
    Well this O2 sensor I am working with is on my CSX, looks like it been there a long time.
    The O2 sensor appears to be working as per my OTC, so I may modify the SBEC harness to accept the three wire O2 sensor for now.
    I would like to get the CSX on the road soon.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  13. #13
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: TII O2 sensor removal

    My formerly high hopes have been dashed. Best of luck getting it off without breakage. You may want to try some heat first.

  14. #14
    Supporting Member Turbo Mopar Contributor
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    Re: TII O2 sensor removal

    Quote Originally Posted by cordes View Post
    My formerly high hopes have been dashed. Best of luck getting it off without breakage. You may want to try some heat first.
    Heated with Oxy/MAPP to orange, No luck with any 3/8" stuff even tried a 18" 1/2 ratchet. No luck today
    I decided to rewire so the SBEC will accept a three wire O2 sensor. It works for now. I guess I will wait until I install my 3" SV before I try again.
    Thanks everyone for the ideas.
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

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