Thermostat goes up, heater blows cold air
Thread Starter
Registered!!
Joined: Nov 2014
Posts: 1
Likes: 0
Rep Power: 0 
Thermostat goes up, heater blows cold air
Hi, i have a 2004 Honda Civic Ex . Just recently, i noticed my heater was blowing cold air but the thermostat goes all the way up . And then all of a sudden , the thermostat will go back to normal and my heat works fine again for about 5 minutes then repeats. I brought it to the shop and got my car check out . My radiator was leaking so i got that replaced . I also replaced the soft hoses and thermostat. I checked my water pump and heater core and they were fine. After the shop, my heater and thermostat was working fine. But it hasnt been a week yet and its acting funny again . Winter is early this year and i need to get this fixed asap. Anything can help ! TIA.
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
jcb111
SOHC D17Ax non-VTEC - VTEC Engine Swaps
10
Apr 17, 2025 12:24 AM
jessica19699
Mechanical Problems/Vehicle Issues and Fix-it Forum
24
Jul 21, 2017 06:59 PM
mrohitredd
Mechanical Problems/Vehicle Issues and Fix-it Forum
3
May 30, 2015 06:51 PM
mrohitredd
7th Generation Civic 2001 - 2005
18
May 14, 2015 07:35 PM
jc33312
Mechanical Problems/Vehicle Issues and Fix-it Forum
1
May 12, 2015 03:17 PM
