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2000 Mazda 626 Question: Temperature gauge

 

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bumper22, 2.5L V6, Potwin, KS, February 24, 2014, 17:06
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Sent one head out to be resurfaced. Put it back together and now the temperature gauge will run normal for a little while and it will slowly claim up to hot position the only way to temperature gauge will come back down to normal by touring the heater motor on in the car the temperature gauge returns to normal. Turn the heater blower motor off the temperature gauge slowly climbs back up to the red-hot I am wondering if it's a combustion problem on the other had how do you determine this or is there another answer

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  • Answer #1

    G. T. Service Center (4067 Answers) , Stephenville, TX - (254) 638-3236
    ProfessorG February 24, 2014, 17:18
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     Master

    If your using the heater core as a radiator, then you more then likely have a radiator or cooling fan issue.

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    bumper22, February 24, 2014, 17:28
     Rookie

    There's nothing wrong with the radiator and the heater fans are working the other had was not sent out for work this car was overheated one time in the past and I have one head resurfaced the other one was not checked I wonder if there's a crack in it and there's combustion coming back up into the cooling system can you answer this question once again the fans are working in the cooling system is not clogged. How do you determine this.

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    ProfessorG, February 24, 2014, 17:42
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     Master

    You can check for bubbles it the radiator while running at operating temperature, of course remove the cap before it pressures up. There's other ways as well, but if your cooling system is cooling down by running the heater blower and doesn't cool down without the heater blowing you have an issue in your cooling system. If it was something else the heater wouldn't be enough to help it cool down. That's my experience and maybe you have more then me. IMO

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    bumper22, February 24, 2014, 17:59
     Rookie

    Thank you for your reply I think tomorrow I will try to find this problem. I will pull the spark plugs on that bank and do a leak down test if air blows back into the reservoir tan I will know that has a crack in the head.

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    ProfessorG, February 25, 2014, 15:29
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     Master

    So you needed a radiator, thanks for replying to say thank you. Don't argue with a Master. Next time listen, and good luck.

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