2002 Honda Civic No hot air

2002 HONDA CIVIC
165,000 MILES • 2.4L • 4 CYL • FWD • AUTOMATIC
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CLASSICSODA
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  • 2 POSTS
I have a 2002 civic ex that blows cold air most of the time when the heater is on high or hot. It sometimes will blow hot but not very often. It has had a new thermostat installed. Any ideas would be appreciated.
Nov 17, 2014 at 7:02 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are both hot, the heat in that vehicle should be controlled by a blend door that regulates heated air flow. it is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.

Nov 17, 2014 at 8:33 AM
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CLASSICSODA
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  • 2 POSTS
I will check that as soon as I can, thanks for the quick reply.

Chris
Nov 17, 2014 at 11:44 AM
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