I bought a 2010 GMC Yukon XL in 2019. The air ride was shot on it (someone had hit and damaged the compressor). I took of the compressor and installed front and rear springs/struts. BUUUUTT I've tried all suggestions listed on threads here and that stinking "service suspension" light won't quit! I even took it to my buddy and had him try, just to make sure I wasn't missing something. No luck. Any other suggestions to stop the dang alert?