SES light came on, lw300 - update

Discussion in 'Saturn L-series' started by Oppie, Aug 30, 2004.

  1. Oppie

    Oppie Guest

    All is good now.
    Cleaned the evap vent solenoid and reinstall.
    Didn't have a scan tool so removed the battery cable for a minute to reset
    everything. Had to re-enter all radio stations and clock but other than
    that, no problems.
    Been driving for several trips now and SES light is still off.
    Oppie, Aug 30, 2004
  2. Oppie

    Blah Blah Guest

    What was coating the evap vent solenoid? I wonder if that injector
    cleaner you put in could of had anything to do with it.
    Blah Blah, Aug 30, 2004
  3. Oppie

    Oppie Guest

    No, it was very fine dust that had accumulated and was jamming the solenoid

    In years past, the canisters with both solenoids were usually mounted in
    the front fender. Unless you were driving behind another vehicle that was
    kicking up dust, the vent pretty much got clean air. My L-series on the
    other hand, puts the vent solenoid in the rear wheel well where it gets the
    dust kicked up by front and rear wheels. Not too smart...especially since
    the normal operation is to pull a small air flow from the vent through the
    canister and into the tank. This pulls the vapors out of the canister and
    burns them in the engine but it also allows a quantity of dust to enter the
    fuel system.

    Once I made an initial diagnosis, it took about a half hour to loosen the
    fuel fill and rotate it to a point that I could get access to the vent
    solenoid, remove, clean and reinstall the solenoid/filter.

    Being the suspicious type, I couldn't help but wonder at the ses light
    coming on at 50,235 miles. This is just over the mandatory emissions
    warranty. Below 50K miles, the dealer has to pay for any emissions related
    failures. With computers, you can do such creative things. No accusation,
    just an interesting observation.

    Oppie, Aug 30, 2004
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