Knock sensor location on a 93 k1500 with a 5.7 litre

Discussion in 'GM Powertrain' started by pook7one, Jan 26, 2008.

  1. pook7one

    pook7one New Member

    anyone know where the knock sensor is locATED N MY FATHERS 1993 CHEVY K1500 4X4 PICKUP. I WAS THINKING IT WAS NEAR THE STARTER, BUT IM NOT SURE
  2. Crawdaddy

    Crawdaddy All hail the Mad King!! Staff Member 5+ Years 1000 Posts Platinum Contributor

    There may be one or two on the motor. They are typically on the lower portion of the block near the oil pan rail. It's an odd-lookng cylinder that just kind of sticks off the block with no apparent use or reason.
  3. zippy

    zippy Rockstar 100 Posts

    Yep, near the starter, if your 5.7 (L05) is like mine (I just pulled the one from my C-1500 1993 Burb). It's above the pan line near the dipstick aperture. Look on the opposite side of the engine and you'll see a drain plug with a square head. I mention this to remind you, the knock sensor works by listening in engine's coolant. Remove the sensor and be ready with a bucket (even with the radiator drained). There's not much excitement down there, why do you want to know?
  4. chevytruckinrem85

    chevytruckinrem85 New Member

    why are you replacing it, im curious because i think it might be my problem.
    i have been reading alot of forums and asking a lot of questions and everyone thinks this is my problem.

    are you having engine running problems if so what are the symtoms.
  5. k1500 mudgirl

    k1500 mudgirl New Member GMTC Chick

    My transmission wont shift into overdrive, and on a cold start runs like sh*t.. acceleration is garbage, so I collected codes from the trucks engine, faulty knock sensor, going to replace it, I'll let you guys know how it went and I'll include pics
  6. thegawd

    thegawd Rockstar 2 Years 1000 Posts

    not shifting into overdrive is most likely the throttle position sensor. check you tube for videos on how to test the tps. its pretty simple.
  7. k1500 mudgirl

    k1500 mudgirl New Member GMTC Chick

    My computer is throwing code 43 for knock sensor... and I read that the ignition is retarded and the overdrive is limited... I'm gonna change it out and if I still have a problem I'll check that tps, thanks

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