Question about 2003 Nissan Sentra

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2003 Nissan sentra 2003 gxe, had 4 yrs, no problems, blows cold air only, had lines flushed to remove air, thermostat works fine, is it the head gasket?

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Start the car up when it is cold and rev the engine up for 30 seconds,loosen up the radiator cap and see if there is pressure there..If there is you probably have a bad head gasket...Caution do not open cap if engine is warm...

Posted on Mar 01, 2010

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Posted on Jan 02, 2017

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2003 nissan sentra is blowing cold air i changed thermostat stillblowing cold air i did notice that heater core hoses are both cold car is not overheating


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let the engine get cold, and remove the radiator cap, fill the system to proper level and re test. run engine until thermostat opens, fans come on, then alow to cool again and re check engine coolant. If this does not work, or the thermostat does not open the thermostat is instaled backwards, remove and reposition.

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4 Answers

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1 Answer

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