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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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Heater blowing cold with new thermostatViews : 3498 Replies : 10Users Viewing This Thread : |
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Dec 8th, 2012, 13:25 | #1 |
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a thermostats a thermostat to me, if replaced on any of my cars i just use whats easily available and never had a problem, as mentioned above simply check it by popping in some near boiling water, should see it open
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Dec 8th, 2012, 14:28 | #2 |
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A simple check you can do with the car is to run it for about five miles to get some heat in to the engine then, with it still running pop the bonnet and feel the temperature of the top hose going to the radiator, if the temp gauge is reading normal then the hose should be hot.
Next get back in the car and set the heater controls to max hot with the blower running, if it's still blowing cold air then you either have an airlock in the system or more probably the heater temp selector has gone kaput - Mike |
Dec 9th, 2012, 19:50 | #3 |
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Thanks folks, appreciate your replies, I will hopefully report back this week with a result
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Dec 16th, 2012, 11:34 | #4 |
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that's right, aftermarket won't stay as reliable for as long but a new one should work just the same out of the box.
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