1. Welcome to Oklahoma Shooters Association! Join today, registration is easy!

    You can register using your Google, Facebook, or Twitter account, just click here.
  2. All members receive 3 free listings a month. Get unlimited listings for just $10 a year! Click here for all the info.

Knock sensors, UGH!

Discussion in 'Gearheads' started by dlbleak, Jan 16, 2021.

  1. SPDguns

    SPDguns Sharpshooter

    Supporter
    Messages:
    4,032
    Likes Received:
    2,128
    Joined:
    Feb 20, 2011
    Location:
    Stillwater
    Rating
    100%
    ADVICE ALERT!!!!
    A buddy of mine re-programs GM computers and he's GOOD. You can find him on FaceBook under Street Car Garage. He reflashed all of our police Tahoe's and he did my truck. He can disable the DoD/AFM which will extend engine life and he does custom tunes. He also has a chassis dyno. If anyone wants his contact info, PM me. He's located just east of Stillwater.
     
    O4L likes this.
  2. Snattlerake

    Snattlerake Sharpshooter

    Supporter
    Messages:
    9,464
    Likes Received:
    10,254
    Joined:
    Jan 19, 2019
    Location:
    OKC
    Rating
    100%
    That is one odd looking duck.
     
  3. travisstorma

    travisstorma Sharpshooter

    Messages:
    374
    Likes Received:
    120
    Joined:
    Aug 22, 2012
    Location:
    Broken Arrow
    Just did this job on my 04 Silverado, twice! New one had an issue. Second time took less than an hour. It can be done without pulling alternator and not have to remove belt. It's just a little more difficult to get things aligned up and stuff out of the way.
     
    O4L likes this.
  4. dlbleak

    dlbleak Super Moderator Staff Member

    Moderator Supporter
    Messages:
    13,939
    Likes Received:
    9,173
    Joined:
    Mar 15, 2009
    Location:
    edmond
    Rating
    100%
    Twice?! That would suck. IIRC, I think I left the belt and alternator on when I did my 04.
     
  5. MR.T.

    MR.T. Sharpshooter

    Messages:
    1,301
    Likes Received:
    793
    Joined:
    Oct 15, 2008
    Location:
    Newkirk
    Rating
    100%
    I wouldn't mind running my 69 Charger on a chassis dyno once just to see.
    No tuning necessary, just a run on the dyno to see the numbers.
     
  6. Snattlerake

    Snattlerake Sharpshooter

    Supporter
    Messages:
    9,464
    Likes Received:
    10,254
    Joined:
    Jan 19, 2019
    Location:
    OKC
    Rating
    100%
    How would you reengineer the knock sensors to the firewall or any place else? Don't they have to be in contact with the block or the engine to sense a knock?
    Just asking for a friend that has an 04 Silverado, me
     
  7. dlbleak

    dlbleak Super Moderator Staff Member

    Moderator Supporter
    Messages:
    13,939
    Likes Received:
    9,173
    Joined:
    Mar 15, 2009
    Location:
    edmond
    Rating
    100%
    Not sure if it has to be in contact or not. The sensors are threaded into the top of the motor but the shaft is solid. No wiring or port into the motor. The wires that come off of them got to a connector on the back of the intake. I ‘guess’ it gets the info from the intake?
     
  8. Backstrap

    Backstrap Sharpshooter

    Supporter
    Messages:
    526
    Likes Received:
    273
    Joined:
    Jun 21, 2011
    Location:
    USA
    Rating
    100%
    I did this job on an ‘03 Yukon and per a YouTube video I found at the time (4 years ago) I laid a thick bead of gasket material right on the valley pan in front of that rear knock sensor to divert water away from it.
     
    xseler likes this.
  9. dlbleak

    dlbleak Super Moderator Staff Member

    Moderator Supporter
    Messages:
    13,939
    Likes Received:
    9,173
    Joined:
    Mar 15, 2009
    Location:
    edmond
    Rating
    100%
    Heck, I sealed my caps up on the 04 and 06!
     
    xseler likes this.
  10. Snattlerake

    Snattlerake Sharpshooter

    Supporter
    Messages:
    9,464
    Likes Received:
    10,254
    Joined:
    Jan 19, 2019
    Location:
    OKC
    Rating
    100%
    What do you mean sealed the caps up? What caps?
     

Share This Page