Question about 1996 Cadillac DeVille

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Cadillac I have a 1996 DeVille with Northstar engine and about 48000 miles. It is driven about 30 miles a week. Now it is hard to start when the engine is warm. It starts much easier if it sits a day or two. Whats the best guess? Fuel injectors, computer, fuel filter, or what? Thanks No grd on compressor relay coil fans will not operate when compressor is jumperd

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  • Anonymous Oct 15, 2008

    i have same problem car starts fine next day.



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This cars are very coming with the leak at the fuel pressure regulator, all you have to do is locate the regulator for the fuel, it is on the fuel injector rail, and unplug the vacum hose if you see any fuel or smell like fuel inside the hose that means the regulator has to be replaced,

Posted on May 28, 2008


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1 Answer

Does this year Cadillac have the Northstar engine/transmission ?

If it is a 4.9L it is NOT a Northstar Engine, The 4.6L Engine WAS A Northstar.

Both Engines were available until 1996.

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Just came off a 1000 mile road trip. The engine died at the stoplight after I arrived home. (2002 cad deville northstar engine). the plugs were changed about 6 weeks ago and seemed to resolve the...

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