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Electric fan relay.


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Before condeming the relay, make sure your fan motor is good. Unplug motor and connect directly to battery. If motor is good, it will run. Remember, electric fan only runs after coolant reaches certain temp. or if a/c is turned on. Could be bad temp.switch on radiator too.

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Most of the factory E-fans are possessed. On my blue XJ, it would run when it was about -30 outside and the motor wasn't warm.

 

Test it as said. If it works, a 30A relay will be fine. A 20A will work too. The peak amperage might be a bit higher, but it's the running amperage you need to worry about... It's nice to be able to turn the fan off if you ever get into deep water - it'll save the fan blades.

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