Join Date: Jan 2011
Location: Winnipeg, Mani-Snow-Ba
Drives: '06 Kia Spectra
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The Ambiant Temperature is -12 deg C.
It took 45 mins of idling for the thermostat to open slightly. The A/C was never used.
The radiator cooling fans were running the whole time during idle (the heater was on).
We then took the car for a 1/2 hr ride and we noticed that if we turned the heater off the vehicle would reach temperature (obviously because the rad cooling fans turned off)....and at one point we turned the heater on and the temp gauge actually dropped (ie, vehicle did not maintain temp). This is all with a new thermostat.
We are concluding that when the rad fans are running the vehicle has great difficulty reaching operating temp. And the rad fans run whenever the heater fan is on.
With my experience with North American vehicles the rad fans should never come on until the vehicle is at temp, they would of course turn on when the A/C is on (but in January in Canada this is not an issue). This Spectra's fans run whenever the heater fan/switch is on.
Last edited by Pongo; 01-08-2011 at 10:32 PM.