NHTSA Campaign Id 91V177000; Date: Oct. 15, 1991
If the throttle spring breaks, the engine will return to idle speed, which may cause a highway hazard and result in a vehicle crash.
1991 Freightliner Fl-70; 1991 Freightliner FL60; 1991 Freightliner FL80
Component: Vehicle Speed Control:springs
Manufactured by: Freightliner Corporation
Affected Units:: 420
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.
Install throttle return springs with larger hooks.
System: throttle return springs. Vehicle description: heavy trucks with cummins b series engines.
Date Owners notified by Manufacturer: Nov 22, 1991
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