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My car is over heating. on 2006 Buick Rendezvous

My car is over heating. I put antifreeze in the radiator, but the car still does not sucks up all of the antifreeze and continues to over heat. I checked it for a leak. I could find any leak. What could it be?

Asked by for the 2006 Buick Rendezvous
Many possibilities for an overheat condition. Lack of coolant, stuck thermostat or electric cooling fans not working. Try turning on the A/c to see if the cooling fans activate.If they don't turn on , then possible bad fan motor,fuse, relay or computer.
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Hello I have a question plzzz so I opened my hood to my 2004 BUICK RENDEZVOUS an I was looking at the fuses 2 of the grey fuses have dark brown on them does that mean they are burnt out an need to be replaced .. I ask because my engine fans are not coming on an its over heating . I checked the fuses inside the car an they are all gud . thanks have a nice day cindy