United States 90V130000
CHAMPION HOME BLDR. CO.
The problem
DUE TO OVERPRESSURIZED FUEL SYSTEM AND CLOSED EMISSIONS CONTROL SYSTEM, THERE MAY BE EXCESSIVE HYDROCARBON IGNITION IN EXHAUST STAGE OF ENGINE OPERATION.
Risk
THIS CAN RESULT IN FIRES FROM BURNED THROUGH MUFFLERS,DEGRADATION OF HOSES, OR LIQUID OR EXCESSIVE VAPOR RELEASE FROM EMISSIONCANISTERS.
What owners should do
REPLACE FUEL TANK FILLER CAP WITH HIGH FLOW, TWO-STAGE RETENTION CAPS; REPLACE ENGINE COMPARTMENT HEATER HOSES WITH HIGH-TEMP NOMEX HOSES; PROVIDE AN ADDITIONAL HEAT SHIELD BETWEEN COACH BODIES AND MUFFLER; AND PROVIDE DECALS FOR ATTACHMENT TO THE FUEL SYSTEM ADVISING USERS NOT TO COMPLETELY FILL THEIR FUEL TANKS.
Units 1128