Overheating problem

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FSUguy - 24 Jun 2005 05:34 GMT

So I have replaced my thermostat and my electric fan motor on my car,
and the radiator is less than a year old. I have the proper coolant level
and no leaks. When I drive, it starts out at a low temp, and climbs to 195
F when the thermostat kicks in. Then about 5 - 10 minutes later, the temp
starts to climb again. I haven't let it get past 220 F before shutting it
off. Should I pull my water pump? Is there anything else it could be?

1990 Firebird V6 3.1L

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Cy Welch - 24 Jun 2005 22:10 GMT

> So I have replaced my thermostat and my electric fan motor on my car,
> and the radiator is less than a year old. I have the proper coolant level
[quoted text clipped - 4 lines]
>
> 1990 Firebird V6 3.1L

My 89 RS 5.0 normally runs around 220 as a top and will hit that spot
repeatedly. If it continues to rise after 220 up to about 240 then I
would get worried. It may go just above the 220 line and then drop back
down at that point. I would also make sure that the fans are coming on
around 210 to 220 as if they are not you probably have a problem with
the temp sensor that activates the fans (this is a seperate sensor that
only does that function).

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Cy Welch
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MetSYS Inc
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FSUguy - 25 Jun 2005 04:29 GMT

We'll see how it performs on the way to work tomorrow (and more importantly,
on the hot ride home @ 4). I'll check to see if the fan comes on at
210-220. Thanks,
-Ben

> > So I have replaced my thermostat and my electric fan motor on my car,
> > and the radiator is less than a year old. I have the proper coolant level
[quoted text clipped - 12 lines]
> the temp sensor that activates the fans (this is a seperate sensor that
> only does that function).

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Charles Bendig - 25 Jun 2005 16:57 GMT

> We'll see how it performs on the way to work tomorrow (and more importantly,
> on the hot ride home @ 4). I'll check to see if the fan comes on at
> 210-220. Thanks,
> -Ben

That is a test better preformed in the driveway at home. Just let it run
with the hood open. Look & Listen for the fans. Fan relays like to crap
out too, check them and the temp switch.
Charles

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