Two problems related to hydraulic power assist steering system have been reported for the 1998 GMC Suburban. The most recently reported issues are listed below.
Steering speed sensor intermitantly failed causing unpredictable steering movement when making right turns at speed. Steering power assist would suddenly change resulting in sudden veer of vehicle. Couple of "near misses" when pulling trailers and entering freeway. Vehicle has been repaired and problem resolved.
Vehicle suddenly will veer right or left when turning wheel slightly at road speed. Seems to be a surge in power steering unit. GMC says they have issued a bulletin on this safety defect to all dealer service managers. Car must be taken to a dealer and repairs paid by customer if out of warranty. See my letter dated July 7, 2001 to coury Buick, mesa, az, 85206.
| Hydraulic Power Assist Steering System problems | |
| Power Steering Pump problems | |
| Steering Failed problems | |
| Power Steering Fluid problems | |
| Steering problems | |
| Steering Gear Box problems |