A different logic Quote:
Originally Posted by merve_extreme When the coolant pump stops the coolant does not stop circulating instantly,it takes a few seconds to do so.the fan is the palio stays on for those few seconds(say like 5-7 seconds on the 1.6 and about 10 seconds on the 1.2).alsothe fan behaves like that,only if the ambient temp is very high.normally on my GTX it never stays on during the winter or rainny season only during Autumn and summer. |
If we switch on the ignition again after the fan stops, the fan restarts.(i've experimented this)
so how is it possible??
So the fan runs even with out circulation of coolant tru engine(rite??)
The fan is controlled by the temperature sensors(in ac condensor coil and radiator cooling coil- they gives cumiliative input to ecu).
the fan and sensor ensures tat there is cool water available in the radiator coil.
and the thermostat lets in the cool water in required quantity to the engine.(adjusts flow) to keep engine temp with in limits.
cooling water circulation to engine is controlled by a thermostat.
so my opinion-
This 10 sec post switch offf running of fan wont help in preventing heat soaking of the engine..
So if u r stopping engine after a tuf ride and if the temp gauge shows more than half mark,give some time for cooling off( with engine runing)
the FIAT logic to have the cooling system independent from ignition control feels fine.
NB- in palio, the engine runs coooler when the AC is switched on.
becoz- the sensors give a cumiliative input to the ecu, which runs the fan in a higher speed, thus yields faster coolling
Drive safe
Sree
Last edited by MexXxentric : 9th April 2006 at 15:51.
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