Two problems related to power assist brake have been reported for the 1997 GMC Safari. The most recently reported issues are listed below.
Steering column failed while turning left. Dealer stated steering pump broke. As a result of steering failure the power brakes became inoperative.
While traveling on the freeway at 65 mph the fan belt tensioner pulley sounded like it exploded, the power steering quit and the brakes would not stop the vehicle. I had to force my way to the emergency lane and coast to a stop. Refd also oib id #s848796 709479 844009 --- someone is going to die from this defect.