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1999 Cadillac DeVille Question: what causes the motor to overheat

 

Question

kyango, Modesto, CA, November 17, 2012, 06:25
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on the freeway cruising 62mph, the car runs fine, however when I slow down the all hell breaks loose and the car overheats. In the the city, the car overheats after 30 minutes driving.

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    pushrod November 17, 2012, 07:05
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     Master

    Best guess : radiator cooling fans are not working. Ram air at speed will cool rad. but at slower speed fans have to do it.

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  • Answer #2

    your.mechanic November 17, 2012, 22:07
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     Master

    most likely the cooling fans or its circuit...this vehicle has a complicated cooling fan electric circuit.

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