2000 STS dash motor noise

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Cadillac Seville / Cadillac Eldorado Forum Discussion, 2000 STS dash motor noise in Past Cadillac Vehicle Discussion; Last night I started hearing a motor noise to the left of the steering column behind where the A/C sensor ...
  1. #1
    Skyman59 is offline Cadillac Owners Member
    Automobile(s): 1974 Eldorado Conv., 2000 STS
    Join Date
    Mar 2014

    2000 STS dash motor noise

    Last night I started hearing a motor noise to the left of the steering column behind where the A/C sensor is. It sounds very similar to the motor for the tilt / telescope, but does go off with the key. Any ideas?

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 67,500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: 2000 STS dash motor noise

    Look for threads in here, Deville and Cadillac Tech Tips on the "aspirator" - the module behind that little 1" square grille, left of the steering column. It's a computer fan assisted sensor for cabin air temperature.

    You can lube the muffin fan hub - Stick a finger in the rubber grommet in the dash end (the window vent tube) and yank off the end of the dash. Pull out the plastic vent tube. Straight in there's a small hex head sheet metal screw. Loosen it, remove with spring mechanic's fingers. Snake out the connector, unplug and fish out the sensor module. There's a sticker over the fan hub/axle. Put a drop of synthetic motor oil on the axle, diddle the fan and replace the sticker. Blow out the tunnel with computer compressed air. Reassemble.

    Somewhere in Tech Tips there's a series of pictures on this.

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