Heater is not blowing the hot air
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Junior Member
Joined: May 2015
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Heater is not blowing the hot air
My car is a 1998 Toyota Camry XLE V6. Two weeks back we flushed the radiator fluid and changed the thermostat and its sensors. I tried different techniques to remove air from the radiator. From that time onwards the heater is not blowing hot air. When I asked the mechanic he told me that there might be an issue with the heater coil. Do I need to change it? I really need your valuable feedback. Thanks in advance.
With Regards
SUPERSRY
With Regards
SUPERSRY
Super Moderator
Joined: Jan 2008
Posts: 15,179
From: PTW
Did you use any chemical cleaners when doing the coolant flush? Chemicals can have all sorts of negative effects on parts such as the heater coil (heater core) and radiator.
There is no official bleeding procedure for the engine. Make sure the climate control is set to max hot. With the engine cold squeeze as much air out of the two large radiator hoses.
Is the engine running at normal coolant temp? Have you gone for a drive with the car then checked the radiator and coolant overflow tank (engine cold)? If the heater valve was open when driving and the radiator and coolant overflow tank are at normal coolant levels the engine/heater should be free of air.
You first want to determine if the heater coil (heater coil) has hot coolant from the engines coolant system flowing through it when the climate control is set to max heat.
The heater coil (heater core) is plumbed into the engines coolant system. A valve on the coolant hose going to the core regulates how much coolant goes to core to generate hot air. This valve should be full open when the climate system is set at maximum heat.
There are two coolant hoses going to the radiator core and these hoses run through the firewall. The valve should be visible on one of these hoses when standing outside the engine compartment. Engine hot, check if the temperatures of these two hoses is the same, as in coolant going in and out of the core.
There is no official bleeding procedure for the engine. Make sure the climate control is set to max hot. With the engine cold squeeze as much air out of the two large radiator hoses.
Is the engine running at normal coolant temp? Have you gone for a drive with the car then checked the radiator and coolant overflow tank (engine cold)? If the heater valve was open when driving and the radiator and coolant overflow tank are at normal coolant levels the engine/heater should be free of air.
You first want to determine if the heater coil (heater coil) has hot coolant from the engines coolant system flowing through it when the climate control is set to max heat.
The heater coil (heater core) is plumbed into the engines coolant system. A valve on the coolant hose going to the core regulates how much coolant goes to core to generate hot air. This valve should be full open when the climate system is set at maximum heat.
There are two coolant hoses going to the radiator core and these hoses run through the firewall. The valve should be visible on one of these hoses when standing outside the engine compartment. Engine hot, check if the temperatures of these two hoses is the same, as in coolant going in and out of the core.
Thread Starter
|
Junior Member
Joined: May 2015
Posts: 19
Did you use any chemical cleaners when doing the coolant flush? Chemicals can have all sorts of negative effects on parts such as the heater coil (heater core) and radiator.
There is no official bleeding procedure for the engine. Make sure the climate control is set to max hot. With the engine cold squeeze as much air out of the two large radiator hoses.
Is the engine running at normal coolant temp? Have you gone for a drive with the car then checked the radiator and coolant overflow tank (engine cold)? If the heater valve was open when driving and the radiator and coolant overflow tank are at normal coolant levels the engine/heater should be free of air.
You first want to determine if the heater coil (heater coil) has hot coolant from the engines coolant system flowing through it when the climate control is set to max heat.
The heater coil (heater core) is plumbed into the engines coolant system. A valve on the coolant hose going to the core regulates how much coolant goes to core to generate hot air. This valve should be full open when the climate system is set at maximum heat.
There are two coolant hoses going to the radiator core and these hoses run through the firewall. The valve should be visible on one of these hoses when standing outside the engine compartment. Engine hot, check if the temperatures of these two hoses is the same, as in coolant going in and out of the core.
There is no official bleeding procedure for the engine. Make sure the climate control is set to max hot. With the engine cold squeeze as much air out of the two large radiator hoses.
Is the engine running at normal coolant temp? Have you gone for a drive with the car then checked the radiator and coolant overflow tank (engine cold)? If the heater valve was open when driving and the radiator and coolant overflow tank are at normal coolant levels the engine/heater should be free of air.
You first want to determine if the heater coil (heater coil) has hot coolant from the engines coolant system flowing through it when the climate control is set to max heat.
The heater coil (heater core) is plumbed into the engines coolant system. A valve on the coolant hose going to the core regulates how much coolant goes to core to generate hot air. This valve should be full open when the climate system is set at maximum heat.
There are two coolant hoses going to the radiator core and these hoses run through the firewall. The valve should be visible on one of these hoses when standing outside the engine compartment. Engine hot, check if the temperatures of these two hoses is the same, as in coolant going in and out of the core.
Thread Starter
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Junior Member
Joined: May 2015
Posts: 19
1) Is the engine running at normal coolant temp? Yes
2) Have you gone for a drive with the car then checked the radiator and coolant overflow tank (engine cold)? I will check it today and post the result here.
2) Have you gone for a drive with the car then checked the radiator and coolant overflow tank (engine cold)? I will check it today and post the result here.
Junior Member
Joined: Mar 2021
Posts: 5
head gasket sealer wouldn't clog a heater cores large passages.
Only a smaller gap would be sealed, like in a valve controlling the flow to the heater core.
Check the smaller hoses from the radiator to the core and back.
Probably nonfunctional now and hopefully lots easier to get to and cheaper.
Only a smaller gap would be sealed, like in a valve controlling the flow to the heater core.
Check the smaller hoses from the radiator to the core and back.
Probably nonfunctional now and hopefully lots easier to get to and cheaper.
The first step is to check how much coolant you currently have by looking at the radiator. turning off the heater does not necessarily impede the circulation of water through the heater coil, and many do not regulate it or use a fixed thermostat regardless of heater settings. Try to replace the coil. If the problem persists, here https://nashvilleperformance.com/jee...iator-upgrade/ you can see various options for radiators and spare parts for it. I recently found the Best Jeep TJ Radiator Upgrade for my Wrangler.
Last edited by PhillGrings; Dec 10, 2021 at 07:05 AM.
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