98 Camry Overheating

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bsmith95610 - 21 Feb 2008 18:22 GMT

I have a 98 Toyota Camary that started overheating a few months ago.
When it first started overheating I was about four hours home and I
drove the whole way and it never actually overheated the gauge just
said it was. So I thought that it was either the temp sensor or the
thermostat. I replaced both of those and I also replaced the
radiator. Once I start the car about 15 minutes later the gauge
starts moving up and it fluctuates between normal and hot. I don't
think I have a cracked head because if I did I don't think that it
would overheat. Does anyone have any idea's of anything else that I
should check? Any idea's would help.

Thanks

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ransley - 21 Feb 2008 19:47 GMT

> I have a 98 Toyota Camary that started overheating a few months ago.
> When it first started overheating I was about four hours home and I
[quoted text clipped - 8 lines]
>
> Thanks

Do both fans work, are hoses new, Is it a toyota thermostat, is air
removed from system, is antifreeze 50-50 mix. how old is water pump.
Does water increase and decrease when cool in expansion tank, Is
radiator cap old. if the gauge says you are overheating you probably
are.

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bsmith95610 - 21 Feb 2008 23:33 GMT

> Do both fans work, are hoses new, Is it a toyota thermostat, is air
> removed from system, is antifreeze 50-50 mix. how old is water pump.
> Does water increase and decrease when cool in expansion tank, Is
> radiator cap old. if the gauge says you are overheating you probably
> are.

Both fans do work. Hoses are not new. The thermostat is not from
Toyota it is what Napa autoparts gave me for the model car I have. I
don't know what you mean by is air removed from system. I am using a
50-50 mix. The water pump is old. Radiator cap is new.

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ransley - 22 Feb 2008 12:42 GMT

> > Do both fans work, are hoses new, Is it a toyota thermostat, is air
> > removed from system, is antifreeze 50-50 mix. how old is water pump.
[quoted text clipped - 6 lines]
> don't know what you mean by is air removed from system. I am using a
> 50-50 mix. The water pump is old. Radiator cap is new.

I myself bought a aftermarket thermostat that never worked or sealed
it was made smaller. Air is in the system unitl you bleed it or it
works its way out. Temp moving up and down to me indicates a bad
thermostat. Was the cooling system flushed. If you had a head leak you
would loose coolant and often the oil goes milky in color. Bottom
hoses can collaps if bad when hot.

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johngdole@hotmail.com - 22 Feb 2008 03:14 GMT

Use Autozone's Loan-a-Tool program, check out the cooling system
pressure tester:

http://www.autozone.com/in_our_stores/loan_a_tool/heating_cooling/coolant_pressu
re_tester.htm

I hope it's not a blown head gasket, it could give that symptom. Did
you install the thermostat with the jiggle valve on the top side?
Stant has more decent OEM style thermostats now, I might use it in the
future but so far this is one maintenance item I still insist on
dealer counter. Use 50%-50% distilled water and preferred Toyota Red.

> I have a 98 Toyota Camary that started overheating a few months ago.
> When it first started overheating I was about four hours home and I
[quoted text clipped - 8 lines]
>
> Thanks

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johngdole@hotmail.com - 22 Feb 2008 03:15 GMT

Also, does the top hose get hot when the engine is?

> I have a 98 Toyota Camary that started overheating a few months ago.
> When it first started overheating I was about four hours home and I
[quoted text clipped - 8 lines]
>
> Thanks

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