Question about 2004 Jeep Grand Cherokee
Posted by Anonymous on
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Posted on Jan 02, 2017
no wiring problems sounds like a simple thermostat or maybe the coolant temp sensor the computer reads the cts and controls the radiator fan speed yes it can be bad and not set a code i worked at a jeep dealership for 8 yrs
Posted on May 06, 2009
No its not true,the cooling fan comes on when the coolant temp reaches a certain point it closes the switch in the temp sensor wich in turn closes the relay and powers the cooling fan,the reason it comes on with the A/C is that it's wired to bypass the temp sensor and associated relay because the A/C compressor forces the motor to work harder and the coolant temp to rise significantly faster,the relay needs to be replaced or you will overheat the motor and possibly cause serious damage.
Posted on May 30, 2009
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