Thermostat ?

micbusathens

Registered
When I commute with my 08 with steady throtlle(cold enviroment) round 4 to 6 krpms the temperature gauge reaches the middle then falls to 1/3.... then reaches again middle then falls again to 1/3 ..repeatedly.Sould I have to worry for a lazy thermostat or yours do the same ?
 
Mine does the same in winter months. Fluids just get much cooler, much faster than in summer months so once the thermo opens much colder fluids hit the block. In the summer the thermo opens and closes more and your fluids don't get the chance to cool off as much. Sounds normal to me.
 
I would swap it out since that is cheap insurance and flush the radiator followed by a GOOD burp of the system.:beerchug:
 
Mine does the same in winter months. Fluids just get much cooler, much faster than in summer months so once the thermo opens much colder fluids hit the block. In the summer the thermo opens and closes more and your fluids don't get the chance to cool off as much. Sounds normal to me.
Thats what I thought when I first observed it.It was winter
 
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