The car only runs hot when the heat and defrost is turned on. It doesnt do this any other time.1994 Cadillac Eldorado runs hot when the defrost is on why is this?when your defrost is on, your air conditioning system is also on, if your have a car with air conditioning. the engine is turning the compressor, which makes it work harder. harder work = more heat. normally, the fan kicks on full time to counter this.
i am guessing you have a problem in that system somewhere- either your fan isn't kicking on like it should or your a/c system is acting up.1994 Cadillac Eldorado runs hot when the defrost is on why is this?only with defrosters on.?? heat too I'd guess check the aux. fan and see if it is coming on. could be low coolant too...good luck1994 Cadillac Eldorado runs hot when the defrost is on why is this?your heater cor is bad when you turn on the heater or defrost it opens a valve that lets water go three it there is a tube that is letting the water go on the grown. run it for 5mi nets and look for the water
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