I have an 87 560 sel very nice but the rear shocks bounce like two children on a bad sofa. The hyrdo. res. is fill and the sls system has no leaks. I have never had the sls system befor. So what do you recomend That I do?????

Sounds like you have air in the system or the accumulators have failed. Try bleeding the system using the bleed port located in the control valve. If you do that and then the ride is "hard" the accumulators are shot. Replace them and re-bleed the system.

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I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k