GM Service Manual Online
For 1990-2009 cars only

The vehicle may have this feature. The enhanced suspension system is found on vehicles with option package (EMP). The enhanced suspension provides supplemental suspension modifications specially engineered for severe service on and off road. The system is comprised of a series of four specially designed and critically damped hydro/pneumatic jounce shocks in parallel with the vehicles primary suspension for increased energy dissipation and greatly enhanced all terrain capability. The front and rear suspension is equipped with this feature. The front factory jounce bumper has been modified to work with this system. This system requires no maintenance or adjustments.