The steering column upper intermediate-shaft nut may not be torqued to proper specifications. The nut could loosen and detach allowing the through-bolt that secures the upper intermediate-shaft to the lower steering column shaft joint to fall out.
Steering
GMC C15 Steering problems by year
3 complaints filed with NHTSA about the GMC C15's steering. Loss of power steering, stiff or loose steering, wandering, column and rack problems.
Steering complaints by model year
Steering recalls
One or both of outer tie rod nuts may be loose and not crimped.
Latest C15 steering complaints
When turning the steering wheel locks and causes the vehicle to keep turning. Please describe. *Ak
While driving, steering wheel became inoperative due to bolt missing of fallen out. Please describe details. *Ak
The steering column broke while driving in between impact. Please describe. Tt
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data