Testing rear shocks

[bushraticus]

I replaced the rattly OEM rear compressor in an '07 Yukon Denali with a dorman unit 5 years ago but the warning message is back and the compressor is noisy again.

This time I bought an OEM which I was about to install, but watching a YouTube video of a guy installing one plus the shocks made me wonder if I should be doing the shocks too?

He said his shocks were shot which ended up killing his compressor and I definitely want to avoid that.

Is there a quick way to check the shock (bladders?) before hand or would I have to install a new compressor and see how things behave afterwards?

 

[bushraticus]

This looks like a good start:

How to Diagnose & Fix a GM Vehicle Air Suspension Kit - 1A Auto

Hearing clicking at the rear or seeing an air suspension light come on? Is your car sitting lower or sagging on one side? Our mechanics will show you how to diagnose a bad GM air suspension kit.

blog.1aauto.com