1997 Cadillac Deville Leaking

1997 CADILLAC DEVILLE
145,500 MILES • V8 • 2WD • AUTOMATIC
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SKYFX1
  • MEMBER
  • 1 POST
I replaced my water pump and radiator and it is still leaking and overheating what else could it be I don't see it leaking any where and the Oil is still good heater core was replaced last year
Jul 6, 2010 at 11:27 AM
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FACTORYJACK
  • ✓Experienced Mechanic
  • 4,159 POSTS
By still leaking, but not seeing it leaking anywhere, you are losing coolant with no external leaks. If you have this in conjunction with overheating, I would recommend the cooling system be tested for the presence of combustion gases. This would indicate an internal leak, head bolt thread failure most probable. 97 was a common year for this type of fault.
Jul 7, 2010 at 3:29 AM
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