1996 Cadillac Deville heating system

1996 CADILLAC DEVILLE
170,000 MILES • 4.6L • V8 • FWD • AUTOMATIC
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DTHOMAS1965
  • MEMBER
  • 1 POST
turn on heater and steam comes out of defrost and antifreeze ran on floor
Feb 14, 2015 at 4:39 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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CARADIODOC
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 34,308 POSTS
Time for a new heater core. To prevent repeat failures and corroded radiators, be sure to replace the coolant every two years, especially if you still have that miserable Dex-Cool antifreeze in there. It is normal for acids to build up in the coolant, and the additives in antifreeze that neutralize that wears out in about two years.
Feb 14, 2015 at 4:54 PM
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