Post by
steve s14 »
https://forums.nicoclub.com/steve-s14-u23089.html
Thu Jan 20, 2005 7:00 pm
if you turn on the heater, does it blow hot air, if the air is cold or warm when the engine temp reads normal it may have an air pocket in the cooling system that needs to bleed out. if it does blow hot air, you may have a plugged radiator, faulty waterpump or a faulty thermostat. there is also the possibility that the head gasket is blown, but i would not jump to that conclusion until you have gone through the cooling system and made sure everything else is operating properly.