Question about 1990 Honda Civic

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My car keeps running hot. I am having to add fluid often. I do add antifreeze. There does not seem to be a leak. Do you think it might be the water pump or the cooling fan? I drove 50 miles today with the radiator full and had no problem. When I go home in the driveway I turned on the heat to make sure that the everything was filled. It ran hot in just a minute. I am baffled as to what the problem may be. Your help will be greatly appreciated. Thanks, Faye

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By your description, there would be no way you get 50 miles without a rad fan working or water pump problem, when you said you've put the heat in and the cars temp went up that means you have an air bubble in the system which was not properly bled.

Posted on Aug 03, 2010

  • vollmerj Sep 03, 2010

    Or you could have to replace your thermometer which could cause your car to run hot. If the thermometer doesn't work it won't be telling your radiator to pump coolant. Luckily the thermometer is about 12 dollars and is pretty easy to install. No bleeding of liens or draining of system required but definitely look up how to do it.



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