Temp gauge fluctuations 97 Eclipse

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B - 01 Oct 2005 14:43 GMT

My daughter's 97 Eclipse (2 L, manual, non-turbo) started acting weird
this morning. As she drives (surface streets, not highway speeds), the temp
gauge seems normal, then starts to go to max, then swings back down to
almost normal, then back hot, etc. Would a bad thermostat cause that?
Other things? Maybe a bad sending unit?
Thanks -
Brian

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Geary Morton - 01 Oct 2005 15:37 GMT

> My daughter's 97 Eclipse (2 L, manual, non-turbo) started acting weird
> this morning. As she drives (surface streets, not highway speeds), the temp
[quoted text clipped - 3 lines]
> Thanks -
> Brian

Could be thermostat, sending unit, or air in the system (if it was
opened up and not bled properly). In any case you would be very wise to
immediately address the problem, as that engine has an aluminum head
that doesn't like to get hot and is pricey to repair.

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simpleton - 01 Oct 2005 15:58 GMT

Low coolant, sticking thermostat or a relay/fan flaking out.
The sending unit is pretty rugged.
www.vfaq.com
www.dsmtuners.com

>> My daughter's 97 Eclipse (2 L, manual, non-turbo) started acting weird
>> this morning. As she drives (surface streets, not highway speeds), the
[quoted text clipped - 9 lines]
> immediately address the problem, as that engine has an aluminum head
> that doesn't like to get hot and is pricey to repair.

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