Engine Head Gasket Failure Problems of Cadillac Deville

The contact owns a 1999 Cadillac Deville. The contact stated that the engine misfired, which caused an engine compartment fire. The vehicle was taken to the dealer, and repaired at an expense of $4500. 00. One year after the repair the failure recurred. He contacted the dealer again, but was advised that because the warranty expired they would not provide any assistance. He then added that they were aware that north star engines are prone to back-firing. No repairs were made. The failure mileage was 52,000, the current mileage was 70,000. Updated 10/20/09 the consumer also stated the head gasket failed as well. Updated 10/22/09.

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The consumer stated the vehicle leaked excessive oil. The dealer stated the head gasket has failed.

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Dealer reports that this gasket failure is a common problem with the northstar engines and that the entire engine must be dissassembled to replace the gaskets. The failure allows excessive amounts of oil to leak out of the engine leading to eventual failure. The problem seems to be poor or faulty engineering of the engine.

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