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1998 Cadillac Seville

Tiny
YVEE2007
  • MEMBER
  • 1998 CADILLAC SEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 98,000 MILES
My thermostat is not opening my top radiator hose is hot and the bottom is cold ive replaced the thermostat thinking it was defective but that wasnt the problem could you please help
Sunday, December 9th, 2007 AT 12:42 PM

2 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
I belive you have a plugged cooling system, or you have a bad water pump, rotate the water pump by hand, does it turn smoothly and freely if so the bearing are good and you should precede to remove it to check the impellers on it to make sure they are still there and not corroded off. If it turns rough and unsteady then replace it.
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Sunday, December 9th, 2007 AT 3:27 PM
Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Ck the belt and tensioner on the water pump first its on the driver side of the engine in the front head assy. Under a black bracket, the water pump requires a special tool to replace it
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Monday, December 10th, 2007 AT 1:29 PM

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