Question about Honda Accord

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I am having overheating problems on 1998 honda accord 4cyl. when it gets hot there is a small amount of water where the thermostat is the top radiator hose is very hot to the touch the water in the radiator is cold the radiator fans are not runing is this because the radiator is still cold are is the fans sesor on the engine. just wondering if u think water pump needs changed are thermostat

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  • gary bayes Apr 09, 2011

    ricky why is the water in the radiator still cold u can put your finger inside the radiator it is not hot but the engine is very hot what to change first the fan is not turning but so shouldnt the radiator be hot also are is the thermastat just stuck

  • gary bayes Apr 09, 2011

    1998 honda accord 4cylis overheating. There is a small amount of water leaking where the thermastat is. The radiator fans are not running, but the water in the radiator is cold. You can take the cap off and hold your finger in it. I want to know if you think the thermastat is stuck or if the water pump is just not pumping there is no leak at the water pump.

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  • Honda Master
  • 3,018 Answers

Hello,
The way the antifreeze circulates is the antifreeze in the engine warms up while the antifreeze in the radiator cools. When a certain temperature is sensed the thermostat pops open and the water pump circulates the antifreeze from the engine to the radiator on the top hose, and the radiator to the engine on the bottom hose. That way the antifreeze that is hot from the engine can cool. When the thermostat seizes when it is closed then the antifreeze cannot circulate. And pressure will continue to build until something gives. Change your thermostat and this should take care of that problem. Your fans should how ever come one. You will have a engine coolant temperature sensor under the distributer.To test the fan unplug that sensor and take a paper clip and jump the connectors on the plug. If the fans come on your relay needs to be replaced. If the fans do not come on then the fans themselves are bad. As for the water pump, if it was bad it would be grinding so bad you would know it. Or it would be noticeably leaking. Once you replace the thermostat, antifreeze will again circulate again.
Regards, tony

Posted on Apr 09, 2011

  • Iron
    Iron Apr 09, 2011

    The water in the radiator will be cold because the radiator cools the antifreeze. But it is because of the thermostat not allowing the circulation not the water pump. The steam by the thermostat is one indicator that the thermostat is bad. Also if it was the pump the bearings would grind so loud you would just know it was the water pump. I suggest to you as if it was my car, change the thermostat and check the ngine coolant temperature sensor under the distributer in relation to the issue with the fans not coming on.

    Regards,
    Tony

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  • Master
  • 4,399 Answers

Thanks for choosing FixYa and welcome to the site. Your fans are supposed to turn on when the engine gets hot. They should be kicking on if it is overheating. If they are not, this may be why it is. It has nothing to do with the radiator, your fans that is. You still need to make sure the radiator works and that you are using coolant, not only water. As for the fans, you need to check your fuses. If the fuses are good, you need to check your wires. Test then with a voltage meter to see which ones are not getting current. You can hook up wires to the fans and hook them to the battery for the time being. There is also a chance4 that your fans are defective. If you are leaking coolant, it could cause the overheating. The most common issue is the thermostat, then the water pump. Your fans are still supposed to turn on at all times, when the engine is hot. You could need a new coolant cap also.

Posted on Apr 09, 2011

  • 3 more comments 
  • Richard Hale
    Richard Hale Apr 09, 2011

    Also, if it is leaking at the radiator, it could be another reason it is overheating. Since the fans are not working, that is your main problem. The leak will eventually need fixed also. Make sure it is not leaking anywhere else. You may be able to find a cheap radiator at a local junkyard. Many people try to fix radiators with patches and other things, most times, they never work right again. Make sure when you change the oil again, that there is no coolant in it. You may have a coolant leak inside the engine.

  • Richard Hale
    Richard Hale Apr 09, 2011

    Were you needing anything else?

  • Richard Hale
    Richard Hale Apr 09, 2011

    Yes, check your thermostat. There might be a clogged line somewhere. That would be the only possibilities. The coolant in the radiator is not getting to the engine. If it was, the coolant would be hot.

  • Richard Hale
    Richard Hale Apr 09, 2011

    If it is not stuck, change the pump.

  • Richard Hale
    Richard Hale Apr 10, 2011

    Any luck?

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