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.
an engine compartment electrical wiring harness may have been routed too close to a sheet metal edge. the wiring can become damaged during normal vehicle operation due to chafing, resulting in an electrical short.