Question about 2001 Cadillac DeVille

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Hot or not?

After driving for awhile "engine hot" dash light comes on although engine doesn't appear to be hot at all. How can you tell if it's the ECM or head gasket?

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  • joeschmid26 Jan 27, 2009

    95 eldorado 4.6 northstar has the same problem overheat light comes on but it doesnt seem to be overheating.

  • Dan Dubay May 11, 2010

    On that car you should be able to scroll thru the engine menu and see the temp of the engine.If it is over 220-230 you have a problem. Check the coolant level. Are you losing any coolant? Thanks ...Dan

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If you have a northstart motor on it most likelly it is overheating
i went to the junk yard to get one of those engines and was tols all they are overheated, some problems with cadillacs nortsart
the only sujestion i will give you is to drain all the coolant and make sure to bleed the cooling system, and add only 50/50 coolant to it, some dealers are adding 100% solution of coolant or antifreeze, and that will cause the car to over heat
also autozone has a block tester tool with the directions to test for posible bad head gaskets and very easy to use, that's a loan tool service so you odn't have to buy it

Posted on Jun 21, 2008

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