United States 91V177000
FREIGHTLINER LLC
The problem
THE HOOK SIZE OF THE THROTTLE RETURN SPRING IS TOO SMALL RESULTING IN A TIGHT FIT AROUND THE ANCHOR NUT, CAUSING THE THROTTLE RETURN SPRING TO BREAK PREMATURELY.
Risk
IF THE THROTTLE SPRING BREAKS, THE ENGINE WILL RETURN TO IDLE SPEED, WHICH MAY CAUSE A HIGHWAY HAZARD AND RESULT IN A VEHICLE CRASH.
What owners should do
INSTALL THROTTLE RETURN SPRINGS WITH LARGER HOOKS.
Units 420