Overheating

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Martik - 27 Sep 2006 18:31 GMT

90 Integra overheats slightly but when I turn the heater on it goes to
normal and stays there. Is this enough info to point to a stuck thermostat?
Since turning on the heater results in lower temps, this would indicate that
coolant is flowing thru the block so I'm a little confused.

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John S. - 27 Sep 2006 18:47 GMT

> 90 Integra overheats slightly but when I turn the heater on it goes to
> normal and stays there. Is this enough info to point to a stuck thermostat?
> Since turning on the heater results in lower temps, this would indicate that
> coolant is flowing thru the block so I'm a little confused.

When you say it overheats, do you mean the needle goes into the red
zone?

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TeGGeR® - 27 Sep 2006 22:51 GMT

> 90 Integra overheats slightly but when I turn the heater on it goes to
> normal and stays there. Is this enough info to point to a stuck
> thermostat? Since turning on the heater results in lower temps, this
> would indicate that coolant is flowing thru the block so I'm a little
> confused.

Exactly when and under what conditions does it overheat?

If turning the heater on works, you've either got a plugged rad, or the rad
fins are corroded and falling off.

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TeGGeR®

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Steve B. - 28 Sep 2006 00:08 GMT

>90 Integra overheats slightly but when I turn the heater on it goes to
>normal and stays there. Is this enough info to point to a stuck thermostat?
>Since turning on the heater results in lower temps, this would indicate that
>coolant is flowing thru the block so I'm a little confused.

My first guess would be a radiator that just isn't up to snuff
anymore. You can have it rodded out or just replace it.

Steve B.

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