Question about 1999 Cadillac DeVille
There is a metal pipe on the back head that has coolant in it going to the heater core. Also there are also small rubber hoses (2) on the driver side toward the rear of the engine. Run your hand under the above listed items to see if you can feel coolant. If the above don't show any leak then it could be a head gasket leaking to the outside of the engine. Good Luck
Posted on Sep 01, 2010
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Posted on Jan 02, 2017
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