My Jeep Patriot started over heating a couple of days ago. while checking ou tthe issue i realize none of the radiator fans ws actually turning,i checked in my relay box switch the relay around then when the A/C on one fan only start spin i switch all relays where the main relay is located testing each one by one and all seems to work because the vehilce started so i can rule out relay are bad some relay seems to have a little corrision on ends but all seems to work confirm that. The fan which is not turning on which is the one the temperatur sensor triggers i ddi a direct connection on it and works. I do not believe is the temperature sensor thats the issue also because the A?c suppose to trigger that fan too and it didn't. So where do i go from there only thing i am guesssing corroded wires at the bottom of relay box if anyone has had that issue please can you hel p me out thanks.
kifo
Checking the wires in the relay box would be a good next step.
Also, the fan relays use ground G111. The wires can corrode under the eyelet crimp and insulation where you can't see it. If so the fix is cutting the old eyelet off, stripping the wires back to good metal, then adding another eyelet.
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Also, the fan relays use ground G111. The wires can corrode under the eyelet crimp and insulation where you can't see it. If so the fix is cutting the old eyelet off, stripping the wires back to good metal, then adding another eyelet.
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