engine block draining

Discussion in 'GM Powertrain' started by bobby1964, Jun 25, 2010.

  1. bobby1964

    bobby1964 New Member

    draining all coolent from your engine block

    book says to open both right and left drain plugs on the engine but I could only find the
    one on the drivers side. Can someone point out were the other one might be?
    Thats on a 4.3
    Last edited: Jun 26, 2010
  2. swedp

    swedp Rockstar

    it´s just in front of startermotor
  3. dualdj1

    dualdj1 Rockstar 100 Posts

    if it's fuel injected the other side drain could be home to the knock sensor.
  4. swedp

    swedp Rockstar

    okay,that sounds reasonble.on my ´00 4.3 cpi, i´ve got 2 regular drainplugs in middel of block and a knocksensor somewhere i have not checked.just changed my cooling mix.
  5. bobby1964

    bobby1964 New Member

    Theres to much crap on the passenger side. Starter,Motor mount, wiring,etc.I didn't see the knock sensor. i just opened just the drivers side. Gm says theres 2 I dont now I looked. It Doesn't matter its all done for now. But thanks anyways.

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