NHTSA recall 01E018000 · Equipment
Engine and engine cooling › Engine
The defect
Equipment description: air bypass valves part nos. 20-401, 20-402, and 20-403, sold between august 1, 2000, and january 31, 2001, for installation on passenger vehicles to prevent ingestion of water into the engine. the valves are constructed of two plastic pieces sonically welded with a silicon diaphragm and foam spring. the weld seam can crack under high stress loads and the valve's internal diaphragm and spring may be ingested into the throttle body, which in turn, may cause the throttle to stick open.
The risk
If the throttle IS unable to return to the closed position, the driver may lose control of the vehicle possibly resulting in a vehicle crash.
The remedy
Aem will notify and provide to its customers a free retaining clip to prevent ingestion of the diaphragm/foam pieces into the throttle body should the valve separate. owner notification began april 26, 2001. owners who do not receive the free clip within a reasonable time should contact aem at 310-484-2322x500.