Cadillac over heating

CADILLAC DEVILLE
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KENWIL1
  • MEMBER
  • 1 POST
I have a 2001 Sedan Deville with 133,390 miles that continues to overheat, I have replaced the thermostat yet the antifreeze does not exit the reservior and into the radiator and ultimately the engine block. Could I possibly have a defective water pump or is there a signal needed to open the thermostat to permit the antifreeze to flow?
Nov 27, 2007 at 11:56 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
thermostat is opened by temperature of the coolant. are the uper and lower radiator hoses both hot if so its unlikely that its a bad water pump, a bad ignition timing could cause the engien to run hot
Nov 27, 2007 at 12:31 PM
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BUZZSAW
  • ✓Experienced Mechanic
  • 1,198 POSTS
[quote:4b7217405e="kenwil1"]I have a 2001 Sedan Deville with 133,390 miles that continues to overheat, I have replaced the thermostat yet the antifreeze does not exit the reservior and into the radiator and ultimately the engine block. Could I possibly have a defective water pump or is there a signal needed to open the thermostat to permit the antifreeze to flow?[/quote:4b7217405e]

find the leak, if no coolant in resivor, will damage headgaskets if not already damaged
Nov 29, 2007 at 11:58 PM
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