NHTSA Campaign Id 80V157000; Date: Dec. 2, 1980
1979 Mack Ms200p; 1980 Mack Ms200p
Component: Vehicle Speed Control:springs
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 1,992
Chafing may occur between the throttle return springs and their mounting brackets and can cause the hook end of the spring to wear prematurely and eventually break.
Dealer will install a set of redesigned throttle return springs and mounting brackets for improved service life at no charge to owner.
Vehicle description: trucks. System: fuel; throttle return springs and mounting brackets. Consequences of defect: in the event of such a failure, the engine will go intohalf throttle position. This could cause the vehicle to become uncontrollable,possibly resulting in a vehicle accident.
Date Owners notified by Manufacturer: Jun 8, 1981
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