Overheating onset

[Kneale Brownson]

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Turn on the A/C and see if the fan comes on.  If not, your first thing to
check is the fusible link.  If it does come on, you need to check for
second and third stages of fan operation.

At 03:11 PM 10/07/2002 -0400, Tom Donohue wrote:

>Just looking for some suggestions regarding a problem that popped up
>Saturday a.m. on my 91TQA.  I was in the Boston suburbs for a wedding.
>Drove out from Western Mass. Friday, about a  2 hr. drive, with no
>problems.  Then on Saturday, while poking about Chelmsford, the temp
>gauge began rising and set off the chimes and the red display.  Stopped,
>checked coolant level, which was fine, as was fuse #15.  When I headed
>back down I-495 to the hotel, the temp came back to slightly higher than
>usual, and all warnings disappeared.  Sunday, did a little driving
>around, keeping an eye on the temp gauge, which remained volatile, then
>headed back home along 495 and I-90.  At speeds between 80-95 (and
>sometimes even a little slower!), the gauge remained at normal levels.
>When I got off the Pike at Exit 1, and began driving in town traffic,
>it began climbing again.  While driving at steady 40 or so, the temp was
>no problem.  When stop & go began, the gauge climbed again.  I've
>narrowed the problem in my mind to a bad fan thermoswitch or a bad fan
>motor.  Since there was no sound associated with the failure, I'm
>leaning toward the thermoswitch.  Anyone have any other suggestions?
>Anyone ever made the repair?  Thanks for any help or suggestions.
>Regards, Tom
>
>
>
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