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Re: 93 Camry overheat
"mary bruce" <mary.bruce.1qv979@no-mx.forums.yourdomain.com.au> wrote in
message news:mary.bruce.1qv979@no-mx.forums.yourdomain.com.au...[color=blue]
>
> Thanks for your advice to date. When the coolant bubbles, it is a
> boiling hot bubble like a kettle and some steam is escaping. The top
> hose going into the rad is also boiling hot. I don't know what the
> bottom hose is like because I can't see it. There are no signs of a
> blown head gasket like white smoke from the tailpipe or milky engine
> oil or oily appearance in the coolant but the toyota mechanic says that
> sometimes there is a very small split that doesn't show any indicators
> other than overheating. I am wondering if some hoses are blocked and
> will ask them to try a flush next I think and check the installation of
> the thermostat and rad cap. Do they put on a new rad cap when you get a
> new rad installed?
>[/color]
If steam is escaping from the overflow bottle, the engine is probably is
overheating.
While it's true that head gasket problem may not show classic symptoms like
oil in the coolant, coolant in the oil, white steam from the exhaust,
overheating like you're describing is not usually one of them.
Shops usually flush when replacing the radiator, it would probably be listed
on the repair order. If not, then a flush would be a good next step, as
well as a radiator cap and cooling system pressure test.
It is possible that the thermostat was installed upside down, which could
cause the symptoms you're describing. The incorrect thermostat could also
cause the symptoms.
As far as getting a new cap when the radiator is replaced, it is hit and
miss. Look at the cap and see if it looks as new as the rest of the
radiator.
--
Ray O
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