Intrepid Oxygen Sensor

Discussion in 'General Motoring' started by Raster, Oct 16, 2003.

  1. Raster

    Raster Guest

    I've got a code 21 (O2 sensor problem) on my 94 Intrepid, 3.3. With
    125k mi, it's probably toast.

    Does the '94 have 1 or 2?
    Is it easily accessible with the car on ramps?
    I have a sensor socket and some basic wrenches, that's about it for
    Do I need special tools?

    If I'm going to end up paying some gas station mechanic to do the
    removal for me anyway for lack of proper tools, I'd rather do it up
    front and avoid getting dirty.
    Raster, Oct 16, 2003
  2. It has 2 sensors on the exhaust manifolds. You CAN see and get to
    both of them. It is not tooooo difficult. If I remember correctly, I
    got both off with a 7/8" wrench. Looking down from the top, they are
    (if I remember correctly-been a few years) about centered in the
    exhause manifold , down low.
    On a COLD engine, look and feel around and you SHOULD see them.
    Richard Benner Jr, Oct 17, 2003
  3. Raster

    Eric May Guest

    Oh, get a little dirty! The O2 sensors are on top of the exhaust pipes, so,
    while you can feel them, you can't see them. But changing them is not
    difficult and no special tool is required. (They do sell a deep socket
    wrench with a slot to accomodate the sensor wires, but you don't need it.)

    As noted by others, there are two O2 sensors. However, the on-board
    computer codes don't tell you which one is bad. Two choices: one is to
    have a place like Auto Zone hook up their hand-held scanner to get the
    computer to tell them which sensor is bad. The other option is simply to
    buy & install two sensors, since, at 125K miles, the second is bound to go
    sometime soon.
    Eric May, Oct 25, 2003
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