Most recent restoration project went in to the garage 3 months ago for full cooling system replacement, new starter, yada yada. I know, I take my time (not a DD). Anyway pulled the truck out today after having the front end jacked up 3 months and the battery disconnected, on the bump stop on the drivers side and a little low on the ps. Ran the truck maybe an hour in the driveway but sls never adjusted. I tried the offroad mode button and the light came on but no ride height adjustment. I read the rave but most explanations do not cover my situation, hoping someone knows what I need to do to get the truck adjusted back to normal. Prior to pulling her in the SLS had no issues.

Thanks for any knowledge you can share.

 

When I still had SLS on my parts truck, the system would not operate until I had driven the truck for a short distance. It would never work if I tried from stationary.

 

This morning it was back to normal height, I think it would not adjust because I had the hood open. Shut the hood last night and now it is normal.

 

I've seen this before but my compressor kicks on as soon as the doors are all closed.