1991 GM Colony Park LS rear air suspension hard
 

Hi All,
just got my 1991 Colony Park, wonderful car and super clean. However, the rear suspension is very hard and the hand book does not tell me how to adjust it.
Any thoughts will be appreciated.
https://cimg5.ibsrv.net/gimg/www.mer...4fa691e67c.jpg

thanks all, got actually some local help and figured it out; there are 2 air valves right under and on the back bumper to adjust the volume for the bags.

If you're experiencing rear suspension issues with your 1998 Mercury Grand Marquis, there are several common problems that could be causing the issue.Bouncy ride, poor handling, or excessive body roll.Inspect the shock absorbers for leaks or damage. If they are worn out, replace them with new ones.The rear of the car sits lower than usual, uneven ride height.Inspect the coil springs for any signs of sagging, cracks, or breaks. If damaged, replace them. FM WhatsApp

Thank you Gigar, appreciate that. Will start looking at it as I will now drive it more. Cheers