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Circulation problems

Tiny
TOMMY PARKER
  • MEMBER
  • 2003 MITSUBISHI ECLIPSE
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 163,000 MILES
Okay, so I am at a loss for words for what is wrong with my car. I changed my radiator, water pump and put in two thermostats and for some reason my thermostat refuses to open up. That is why I put a second one in to double check that it was not bad. Even boiled it in water to see if it opens up. I have heat, and the weirdest part of all is that my car does not overheat anymore so why is my thermostat not opening? Everyone keeps telling me that if my engine is not getting hot then to just leave it alone, but it is kind of bothering me. Oh and I do not have any leaks. Please help because I am going crazy over here.
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Thursday, December 7th, 2017 AT 3:03 PM

7 Replies

Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
How do you know the thermostat is not opening up?
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Thursday, December 7th, 2017 AT 5:11 PM
Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
From what I see, that is not a cross flow radiator and they can be difficult to tell when there is coolant flowing.
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Thursday, December 7th, 2017 AT 5:12 PM
Tiny
TOMMY PARKER
  • MEMBER
  • 4 POSTS
My lower hose is not getting hot which is ran from the thermostat housing to the bottom of the radiator so that probably means my thermostat is not opening up. However, it does not make sense because it is not getting hot.
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Friday, December 8th, 2017 AT 6:46 AM
Tiny
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  • MECHANIC
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Did you by chance hotwire your cooling fans to run all the time?
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Friday, December 8th, 2017 AT 8:22 AM
Tiny
TOMMY PARKER
  • MEMBER
  • 4 POSTS
No, I put everything back the way it was.
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Friday, December 8th, 2017 AT 10:16 AM
Tiny
TOMMY PARKER
  • MEMBER
  • 4 POSTS
Before I installed the new water pump both hoses were getting hot.
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Friday, December 8th, 2017 AT 10:17 AM
Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
If you are getting heat from the heater than the engine must be getting warm. I would ignore it if there are no overheating or heater problems.
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Friday, December 8th, 2017 AT 11:58 AM

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