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my 03 cherokee radiator fan keeps running when i shut the engine off?

it starts happening when i boost the battery and now it wont stop. would be grounded or maybe the boost burned some wiring? i checked the fuse its not burned
where do i find that relay? and how to replace it?


replace the batt and the relay for the fan/fan is killing batt and then you are boosting/

Auto Repair & Diagnostics : How to Know When to Replace a Fan Thermostat

A car's thermostat either controls the flow of coolant through the engine or turns on an electric fan. Check on the side of the radiator for ...