Hydro Suspension 450sel 6.9
Could anyone explain the basic operating function of the hydro suspension system. This vehicle has been sitting for some time and after starting it up the suspension would not rise. So I changed the oil pump,the vehicle shot up to it's max hight and will not come down. Only if I drain the oil from the spheres will it lower but only to rise again to it's max hight once the engine is started up again. The system has 5 shperes, why? Please help.
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