NHTSA recall 67V089000
Service brakes, hydraulic › Power assist
GMC E4500 and 4 more
Recalls › 67V089000
NHTSA recall 67V089000
GMC E4500 and 4 more
Possibility that a lack of brake power assist may be caused by a defective check valve or by possible interference between the booster actuating huband dust seal retainer on the firewall.loss of power assist will result in higher than normal brake pedal effort and make it difficult to stop within a satisfac- tory distance.(inspect, test, and replace parts as required.)