Low coolant level '01 lw300

Discussion in 'Saturn L-series' started by Oppie, Sep 26, 2010.

  1. Oppie

    Oppie Guest

    Low coolant level light has been coming on now intermittently for a few
    weeks even though fluid level is good. Interestingly, the coolant level
    switch is normally closed (with reservoir full) and routes through the BCM
    to the dash indicator. Pulled off the connector under the coolant reservoir
    and put a jumper across the terminals. If the light is on, it won't go off
    immediately. I shut off the engine, re-started and the light stayed off.

    Wound up removing the reservoir and flushing out with a hose. Some debris
    had blocked the float from sliding up and down. Seems to be working properly
    now. Probably a good time to also flush the cooling system anyway. For that
    matter, at 160K miles, should think about replacing the timing belt again
    and the water pump while in there.

    Oppie, Sep 26, 2010
  2. Oppie

    Oppie Guest

    Low coolant light came on again today. Found a crack in the float for the
    level sensor. Not fixable so ordered a new coolant recovery tank with
    sensor. $60 list.
    Oppie, Sep 28, 2010
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