Whistling Load Leveling

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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, Whistling Load Leveling in Past Cadillac Vehicle Discussion; Everytime the load level lights goes on I can hear a terrible whistling outside the car.. any common locations where ...
  1. #1
    riccorizzo is offline Cadillac Owners Member
    Join Date
    Mar 2003

    Whistling Load Leveling

    Everytime the load level lights goes on I can hear a terrible whistling outside the car.. any common locations where these air lines tear? If I pull the relay for the load leveling will the light on the dash stay on or off? this is on my day-old '90 Brougham 5.7... Thanks in advance..

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  3. #2
    ssstealth's Avatar
    ssstealth is offline Cadillac Owners Enthusiast
    Automobile(s): 06 STS-V, 94 Fleetwood TS
    Join Date
    Jan 2003
    Winston Salem, NC
    The most common place that I have seen leaks occur on these is near the tires. On the '90 I beleive that the compressor is still under the hood mounted up high, so the front tires should not be the culprit.

    Look at the back... there is a place where the tubing goes through the frame rail near the tires. If you pull the air line from the compressor and let the air bleed out then reconnect it and power up the car, you should be able to find the source of the leak.

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