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Cadillac over heating

Tiny
KENWIL1
  • MEMBER
  • CADILLAC DEVILLE
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?
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Tuesday, November 27th, 2007 AT 7:56 PM

2 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 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
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Tuesday, November 27th, 2007 AT 8:31 PM
Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Find the leak, if no coolant in resivor, will damage headgaskets if not already damaged
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Friday, November 30th, 2007 AT 7:58 AM

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