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Old July 20th 05, 07:54 PM
YouGoFirst
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>> I have a 1993 Grand Cherokee Laredo with the 5.2 L V8 engine. I recently
>> had the thermostat and the fan clutch replaced, and 1 1/2 years ago the
>> radiator was replaced.
>>
>> I live in Utah, and lately it has been getting up to 100 degrees, and I
>> have
>> found that if I am driving my car around and get stopped at a bunch of
>> stop
>> light my temperature goes over 210. I am not in rush hour trafic, and am
>> able to go for a block or two before having to stop. Fortunately, if I
>> can
>> get going 40 mph or more for a few of minutes the temp goes down to about
>> 190. My only thought would be that the fan clutch that I just had put in
>> doesn't work right. Does anybody have an idea as to what is going on?

>
> How much over 210? If it only gets to 210 and holds there (or close)
> without continuing to rise toward the redline you have a normal
> situation. You may be seeing some degradation in the water pump - the
> vanes will corrode over time - but some increase in temp is normal
> when the OAT is in the 100+ range (I can testify to that - I grew up
> in West Texas). If you have a/c you might also look to see if the
> aux. electric fan is working, if you have one. Remember that 40 mph
> provides two cooling boosts: air flow and increased circulation by the
> water pump.
>


It has gone up just over the next gauge mark, which I think is 235. I
think that it would have kept on going if I hadn't been moving agian.

Where would the aux fan be, I looked, and haven't found one, unless it is
between the AC coils and the radiator.


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