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Hello , my 99 el dorado recently ran hot at 77000 miles. I don't know how hot and don't know a lot about engines but believe the head gaskets blown , coolant can be seen in the oil . I was told that I could replace the engine with the engine out of my 03 deville that has been deemed un fixable due to electronic problems . It would crank but not stay cranked . The engines are the same so I am told but does anyone know of any other reasons or problems I am going to run into trying to swap these engines ? any advice much appreciated . Thanks !
I am new to the forum, I bought the most beautiful 95 El Dorado with 126k on it. I got a great deal on it and assumed that it has a blown head gasket. I am continuing to get bubbles into the overflow tank and of course it overheats after a short while. I did run the exhaust gas test blue liquid at the radiator over flow tank for several minutes and it never turns yellow. I am going to try this test again to make sure i did not contaminate the test. I have read that someone said something about a purge tube or something regarding the bubbles. Not sure where that is, but i will locate it. I did pull plugs and run the car and it seems like the bubbles did slow down when a few of the plugs were pulled. But it just does not add up that i don't see exhaust gases in the dye test. Thankful, but just don't understand these amazing motors. I come to the experts asking for advice on this beautiful car.