Cracked or broken plastic thermostat housing and overheating
ENGINE AND ENGINE COOLING
14 NHTSA complaints · 2008-09 → 2012-06
“2004 CHEVY AVEO THERMOSTAT HOUSING - CRACKED AND OVERHEATED. TONS OF REFERENCES ON INTERNET ON THIS SAME PROBLEM. *TR”
“THE PLASTIC THERMOSTAT HOUSING COMPLETELY SNAPPED WHILE DRIVING ONLY 35 MILES PER HOUR. THERE ARE MULITPLE CHEVROLET AVEO OWNERS THAT HAVE A CAR BETWEEN THE YEARS 04-06 THAT HAVE HAD THE SAME PROBLEM. NOT ONLY IS THIS A SAFTY HAZARD, BUT A REALITIVE COSTLY FIX. *TR”
“MY 2004 CHEVROLET AVEO'S THERMOSTAT HOUSING BUSTED TODAY AT 67,000 MILES. THIS RESULTED IN OVER HEATING THE MOTOR AND DUMPING ABOUT ONE GALLON OF ANTI-FREEZE ON THE ROADWAY. IT TURNS OUTS THIS PART WAS MADE OUT OF PLASTIC. A REPLACEMENT ALUMINUM VERSION IS NOW”