2002 Mercury Mountaineer Overheating engine

Tiny
CDMANN617
  • MEMBER
  • 2002 MERCURY MOUNTAINEER
Engine Cooling problem
2002 Mercury Mountaineer 6 cyl All Wheel Drive Automatic

My vehicle constantly runs hot. I have replaced the radiator, thermostat, water pump, and checked all the fans and it is still running hot. There is no water pressure coming to the thermostat. When I remove the thermostat there is no water there. When I start it up and put coolant in it, the water comes up to the thermostat. Then when I run it, it starts running hot again. I have replaced everything that has anything to do with the cooling system. There seems to be no water coming up to the thermostat like it should. What could be causing this?
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Friday, August 13th, 2010 AT 9:44 AM

5 Replies

Tiny
RASMATAZ
  • MEMBER
Check the water pump again and the hoses if its collasped
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Saturday, August 14th, 2010 AT 6:38 AM
Tiny
CDMANN617
  • MEMBER
Engine Cooling problem
2002 Mercury Mountaineer 6 cyl All Wheel Drive Automatic

My vehicle constantly runs hot. I have replaced the radiator, thermostat, water pump, and checked all the fans and it is still running hot. There is no water pressure coming to the thermostat. When I remove the thermostat there is no water there. When I start it up and put coolant in it, the water comes up to the thermostat. Then when I run it, it starts running hot again. I have replaced everything that has anything to do with the cooling system. There seems to be no water coming up to the thermostat like it should. I have checked the hoses and the water pump again and the hoses aren't collapsing and the water pump is fine. What could be causing this?
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Tuesday, August 17th, 2010 AT 1:38 PM
Tiny
RASMATAZ
  • MEMBER
Check the radiator if its clogged by feeling for cold spots-if okay try bleeding it and see what happens
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Tuesday, August 17th, 2010 AT 2:02 PM
Tiny
CDMANN617
  • MEMBER
My vehicle constantly runs hot. I have replaced the radiator, thermostat, water pump, and checked all the fans and it is still running hot. There is no water pressure coming to the thermostat. When I remove the thermostat there is no water there. When I start it up and put coolant in it, the water comes up to the thermostat. Then when I run it, it starts running hot again. I have replaced everything that has anything to do with the cooling system. There seems to be no water coming up to the thermostat like it should. I have checked the hoses and the water pump again and the hoses aren't collapsing and the water pump is fine and the radiator has been checked. We realize that the heating hose is causing pressure to build up. Once the pressure is let off it stops running hot for about a week then does it again. What could be causing this? How can it be repaired?
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Thursday, August 19th, 2010 AT 2:13 PM
Tiny
RASMATAZ
  • MEMBER
Could be a blockage in the block coolant passages try flushing the cooling system
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Thursday, August 19th, 2010 AT 4:29 PM

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