heat not working
02-23-2009, 08:35 AM
#1
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heat not working
Hey I have a 95 honda civic ex and the heat just stop working on me. I think it might be the heat sensor, but i can't seem to find where it is. Any help or suggesions what may be causing the heat not to work besides heat sensor?
02-23-2009, 09:19 AM
#2
318 Curves, 11 miles
Re: heat not working
could be a lot of things... thermostat, heater core, heater control, air in the coolant, low coolant, clogged/leaking heater core...
First things first: check your coolant level. Is it full?
Is your heater hose warm? This will be a hose running from your thermostat area to your firewall. If your engine is warm, this hose should be warm. This hose circulates warm coolant into the heater core behind your dash. There should also be a little control box on the hose that opens and closes when you turn up the heat. If you have the heat up, it should be warm on both sides of the box.
If you have air in the coolant (which might happen if your coolant is low), adding coolant may not be enough. You may have to run it for up to 30 minutes with the cap off, adding coolant whenever it goes low to get all the air out of the system. We just replaced a headgasket on a civic and couldn't get the coolant to cycle through the heater for a very long time after filling, so keep trying.
First things first: check your coolant level. Is it full?
Is your heater hose warm? This will be a hose running from your thermostat area to your firewall. If your engine is warm, this hose should be warm. This hose circulates warm coolant into the heater core behind your dash. There should also be a little control box on the hose that opens and closes when you turn up the heat. If you have the heat up, it should be warm on both sides of the box.
If you have air in the coolant (which might happen if your coolant is low), adding coolant may not be enough. You may have to run it for up to 30 minutes with the cap off, adding coolant whenever it goes low to get all the air out of the system. We just replaced a headgasket on a civic and couldn't get the coolant to cycle through the heater for a very long time after filling, so keep trying.
02-24-2009, 12:01 PM
#3
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Re: heat not working
could be a lot of things... thermostat, heater core, heater control, air in the coolant, low coolant, clogged/leaking heater core...
First things first: check your coolant level. Is it full?
Is your heater hose warm? This will be a hose running from your thermostat area to your firewall. If your engine is warm, this hose should be warm. This hose circulates warm coolant into the heater core behind your dash. There should also be a little control box on the hose that opens and closes when you turn up the heat. If you have the heat up, it should be warm on both sides of the box.
If you have air in the coolant (which might happen if your coolant is low), adding coolant may not be enough. You may have to run it for up to 30 minutes with the cap off, adding coolant whenever it goes low to get all the air out of the system. We just replaced a headgasket on a civic and couldn't get the coolant to cycle through the heater for a very long time after filling, so keep trying.
First things first: check your coolant level. Is it full?
Is your heater hose warm? This will be a hose running from your thermostat area to your firewall. If your engine is warm, this hose should be warm. This hose circulates warm coolant into the heater core behind your dash. There should also be a little control box on the hose that opens and closes when you turn up the heat. If you have the heat up, it should be warm on both sides of the box.
If you have air in the coolant (which might happen if your coolant is low), adding coolant may not be enough. You may have to run it for up to 30 minutes with the cap off, adding coolant whenever it goes low to get all the air out of the system. We just replaced a headgasket on a civic and couldn't get the coolant to cycle through the heater for a very long time after filling, so keep trying.
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