ENGINE AND ENGINE COOLING:COOLING SYSTEM
VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH VR6 ENGINES. A COOLANT SYSTEM COMPONENT SUCH AS THE THERMO SWITCH, RADIATOR FAN, OR WATER PUMP, CAN MALFUNCTION CAUSING THE COOLANT TEMPERATURE AND COOLANT SYSTEM PRESSURE TO INCREASE SIGNIFICANTLY. OVER TIME, EXCESSIVE PRESSURE CAN CAUSE LEAKAGE OF COOLANT FROMTHE SYSTEM, INCLUDING LEAKAGE FROM THE HEAT EXCHANGER.
Remedy: DEALERS WILL INSTALL IN THE COOLANT INLET HOSE TO THE HEATER CORE, A PRESSURE REDUCER WITH A 5MM DIAMETER SECURED BY A SPRING TENSIONED HOSE CLAMP. ALSO A NEW RELAY THAT WILL CHANGE THE OPERATION OF THE SECONDARY ELECTRICAL COOLANT PUMP WILL BE INSTALLED. DEALERS WILL ALSO PERFORM A FUNCTIONAL CHECK OF THE COOLING SYSTEM TO MAKE SURE THAT ALL COOLING SYSTEM COMPONENTS OPERATE PROPERLY.
6,217 vehicles affected
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
IMPROPER MATERIAL WAS USED IN MANUFACTURING THE RADIATOR FAN MOTOR SHAFT CAUSING THE SHAFT TO WEAR AND BECOME NOISY.
Remedy: DEALERS WILL REPLACE THE COMPLETE COOLING FAN ASSEMBLY ON VEHICLE HAVING THE POTENTIAL SHAFT MATERIAL PROBLEM. DEALERS WILL INSTALL A NEW FAN BLADE INCLUDING A NEW LOCK NUT ON VEHICLE WITH LOOSE FAN BLADE LOCK NUTS.
34,000 vehicles affected