When the car starts, the air compressor activates to build pressure in the air springs (air bags) to raise the car to its normal ride height. This is normal operation.
However, if the rise is:
* Excessive or jerky: This could indicate problems with the air compressor, air lines, air springs themselves (leaks or failure), or the height control system.
* Delayed or doesn't happen at all: This also suggests problems with the air compressor, air lines, or a sensor malfunction.
* Accompanied by unusual noises: Listen for hissing (air leaks), grinding (compressor problems), or clicking (relay issues).
If you're experiencing any issues beyond the normal rise, it's best to have a mechanic diagnose the problem. Ignoring air suspension problems can lead to further damage and an unsafe driving experience. A failing air suspension system can leave the car dangerously low or cause unpredictable ride height changes.
