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  1. #1
    Legend

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    Default Bank 2 anybody????

    Which bank is which on a 350, I need to replace the O2 sensor but cant find which bank is number 2??????
    99 K1500 Suburban LT "THE BEAST"
    Hypertech III, K&N, true dual
    285/75/16
    ___________________________
    Jason

  2. #2
    Legend

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    Default

    If memory serves me correctly bank 2 is passenger side.

    edit- I actually had to go out to my truck to remind me which was which. Bank 2 is passenger side, Bank 1 is driver's side.
    Steven



    "The Sarge"
    1999 Chevy Suburban LT- K2500
    7.4 454 Vortec, 4WD
    305/70/16 on Eagle Alloy




  3. #3

    Cool bank 2 anybody

    Bank 2 is always passanger side.

  4. #4

    Default

    Quote Originally Posted by Springthing View Post
    If memory serves me correctly bank 2 is passenger side.

    edit- I actually had to go out to my truck to remind me which was which. Bank 2 is passenger side, Bank 1 is driver's side.

    that is correct always the passenger side for bank 2

    sensor 1 is pre cat sensor 2 is post cat, if you needed that

    2003 Z71 Silverado LS
    Access roll up cover
    Bed Rails
    Billet Grill insert
    Bed Rug
    CB with PA system
    Waiting to be installed
    Two 8in RF HX2 punch( would have 12s but they got stolen)

  5. #5
    Legend

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    Default

    Now the only problem is getting the sensor out, I have sprayed it with penetrater for let it soak for 24 hours now and it still wont budge!

  6. #6
    Legend

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    Jason- It was a PITA to get one of mine out. There's an offset wrench/socket head you can get that might make it a little easier. I had bought one and gave it a whirl. It didn't work for me. Went to the shop I use often and he was able to have it cracked loose within a minute while it was up on the lift.

    To make things simpler, and you probably know, make sure the exhaust is somewhat hot. The metal expands and might make it a little easier to get it out.

    Good luck,

  7. #7

    Default

    Use a torch and get the fitting as hot as you can. Spray some PB or whatever you like around the threads of the fitting. The PB will shock cool the threads which helps break the corrosion. Plus the PB will wick down in the threads. You may want to do this several times over a half hour or so. A MAPP gas torch is OK if you don't have Oxy-Acetylene
    When you hear hoofbeats, look for horses not zebras.

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