1998 Mercury Mystique Running hot

1998 MERCURY MYSTIQUE
15,500 MILES • 6 CYL • FWD • AUTOMATIC
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JTSANSWERS
  • MEMBER
  • 3 POSTS
my car is running at 230 degrees according to the computer and the temp gage. when we hold a laser temp gage to the system it reads at 210 degrees. we already changed the water pump, both coolent temp sencers, the thermostat and flushed th system 4 times. the radiator flows fast and there are no leaks in the system. the system also pressure tested fine. please help me my only next step is to change the radiator which i think is working properly.
Jul 14, 2008 at 11:49 AM
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LEGITIMATE007
  • ✓ASE Certified Mechanic
  • 5,121 POSTS
  • ASE Certified Mechanic
are you buying the correct temperature rated thermostat? and make sure you bleed the system too
Jul 14, 2008 at 2:17 PM
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JTSANSWERS
  • MEMBER
  • 3 POSTS
how do i bleed the system properly?
Jul 14, 2008 at 4:35 PM
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LEGITIMATE007
  • ✓ASE Certified Mechanic
  • 5,121 POSTS
  • ASE Certified Mechanic
I would take the radiator cap off, and start the car with the radiator cap off, and let it reach operating temp, if theres air in there, when the thermostat opens, the coolant will bubble and,probably overflow a little and release the air , when it stops shut car off and top the coolant off, put caps back on. and drive it see how it does.
Jul 14, 2008 at 11:04 PM
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