United States 94V228000
General Motors, LLC
The problem
A VACUUM HOSE CAN DETACH FROM THE POWER BRAKE BOOSTER CHECK VALVE AS A RESULT OF ENGINE BACKFIRE.
Risk
THIS CAN RESULT IN INCREASED ENGINE IDLE AND LOSS OF POWER BRAKE ASSIST AFTER DEPLETION OF THE BOOSTER VACUUM RESERVE.
What owners should do
DEALERS WILL INSTALL A CLAMP ON THE POWER BRAKE BOOSTER ASSIST.
Units 30263