Yukon xl air ride noise

[Brown131517]

2017 Yukon XL SLT 46,000 Miles.  Rear shocks replaced 6 months ago.  
 

I’ve noticed lately basically every time I start the vehicle that the compressor turns on - loud annoying noise- runs for 5-10 seconds and then shuts off.   Is this normal for this vehicle? Should I be hearing the compressor? I understand that sometimes it comes on when towing, but that is not the case here.  Thanks 

[swathdiver]

Perfectly normal operation.  There may have been a type of silencer that fell off and that's why it's noticeable now but am not familiar with your generation.

 

The compressor turns on when passengers climb aboard, when the truck is refueled, etc.  all to maintain a perfect ride height and compensate for increased payload.

Edited April 13, 2022 by swathdiver

[CamGTP]

The pumps can start to make more noise when they are dying too. Can also check to see if the bracket the pump is bolted to is not loose and rattling.

[Brown131517]

Thank you all