4.6 Northstar engines have a pretty elaborate heater pipe setup that snake around to the back of the engine and into the firewall. Trace all along it for leaks. After checking none of the hoses or fittings are leaking, you'll have to look at the intake and head gaskets, or freeze plugs
2000 Cadillac DeVille
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Maintenance & Repair
back of car is up too high
1998 Cadillac DeVille
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Maintenance & Repair
None of driver's side door electrical controls work. 2005 DeVille Cadillac, panel switches include power window to all four windows, side windows outside, door locks, heated / AC seat controls. What c...
2005 Cadillac DeVille DTS Sedan FWD
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Maintenance & Repair
So, today when I got home I stopped my car to find that my engine coolant was flowing out the bottom and it was bubbling inside the container for it as it did. It's not having to do with my radiator I...
1995 Cadillac DeVille Sedan FWD
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Maintenance & Repair
i bought the car from another person..and i made the mistake of not checking if the buttons worked or not, now everytime i change the oil on my car the letters stay on
2002 Cadillac DeVille
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Maintenance & Repair
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