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4th JDM Heater Blowing Low Flow of Air through Vents

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arif_manji
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4th JDM Heater Blowing Low Flow of Air through Vents

Post by arif_manji » Thu Nov 30, 2017 8:59 am

Hi fellow luders,

I am having an issue with the heating with one of my ludes. Its a JDM import and heating flow is really poor. I can hear the heater fan but the flow of air through the vents is such a low flow to hardly any.

Is this a known fault and fix available?

Any help will be appreciated.

Thanks
Last edited by arif_manji on Fri Dec 01, 2017 11:00 pm, edited 1 time in total.
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Post by Drax » Thu Nov 30, 2017 9:41 am

arif_manji wrote:Hi fellow luders,

I am having an issue with the heating with one of my ludes. Its a JDM import and heating flow is really poor. I can hear the heater fan but the flow of air through the vents is such a low flow to hardly any.

Is this a known fault and fix available?

Any help will be appreciated.

Thanks
i think this could be an airlock in the coolant system :? im trying to think what else it could be though...
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Post by arif_manji » Thu Nov 30, 2017 10:43 am

Drax wrote:
arif_manji wrote:Hi fellow luders,

I am having an issue with the heating with one of my ludes. Its a JDM import and heating flow is really poor. I can hear the heater fan but the flow of air through the vents is such a low flow to hardly any.

Is this a known fault and fix available?

Any help will be appreciated.

Thanks
i think this could be an airlock in the coolant system :? im trying to think what else it could be though...
Its odd - doesn't seem to have a airlock? I'll double check again.
My Cars:
2022 Toyota Supra 3.0 GR PRO
Addictions...
1996 4th Gen Honda Prelude 2.2i VTEC (UK Spec - Converted from a H23A)
1993 4th Gen Honda Prelude 2.2i VTEC Auto LSD (JDM)
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Post by arif_manji » Thu Nov 30, 2017 10:45 am

I just checked, no matter what setting you press on the climate control, its stuck on the feet and air is blowing normal. So looks like despite what you press on the climate control, its set on foot heat. I'm assuming the mechanism is stuck?
My Cars:
2022 Toyota Supra 3.0 GR PRO
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1996 4th Gen Honda Prelude 2.2i VTEC (UK Spec - Converted from a H23A)
1993 4th Gen Honda Prelude 2.2i VTEC Auto LSD (JDM)
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Post by uberNoobZA » Thu Nov 30, 2017 10:49 am

Hi. Not sure if this helps..... I noticed on my 4th GEN (UKDM) that the ventilation ducting (if that's what it's called) behind the dash between the center and steering wheel was VERY loose. This resulted in pretty much no air coming out the side vents. Just thinking that maybe you could be suffering from something similar ? Center vents on my 4th gen blow pretty well, as long as fan is on full. Seems that increase in air flow is not gradual, but rather a very little on all settings except full.

I thought that airlock would stop heating from coming on, and not affect airflow as such ?

- EDIT - Oops, you entered an update while I was typing :-) Yeah sounds like it's stuck

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Post by uberNoobZA » Thu Nov 30, 2017 10:54 am

Sorry if this isn't of any use, but I saw this video while searching for removing the climate control (I need to change my LEDs). Maybe you need to resolder ? [youtube]CIWrXeZ7-7s[/youtube]

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Post by arif_manji » Thu Nov 30, 2017 11:10 am

uberNoobZA wrote:Hi. Not sure if this helps..... I noticed on my 4th GEN (UKDM) that the ventilation ducting (if that's what it's called) behind the dash between the center and steering wheel was VERY loose. This resulted in pretty much no air coming out the side vents. Just thinking that maybe you could be suffering from something similar ? Center vents on my 4th gen blow pretty well, as long as fan is on full. Seems that increase in air flow is not gradual, but rather a very little on all settings except full.

I thought that airlock would stop heating from coming on, and not affect airflow as such ?

- EDIT - Oops, you entered an update while I was typing :-) Yeah sounds like it's stuck
uberNoobZA wrote:Sorry if this isn't of any use, but I saw this video while searching for removing the climate control (I need to change my LEDs). Maybe you need to resolder ? [youtube]CIWrXeZ7-7s[/youtube]
I think the climate control unit is working all ok, i think its the motor actuator might be stuck or broken? Are these easy to replace?
My Cars:
2022 Toyota Supra 3.0 GR PRO
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1996 4th Gen Honda Prelude 2.2i VTEC (UK Spec - Converted from a H23A)
1993 4th Gen Honda Prelude 2.2i VTEC Auto LSD (JDM)
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Post by uberNoobZA » Thu Nov 30, 2017 11:15 am

I'm sure someone else can answer you on how easy it is to replace those - I certainly can't :D

That said, this IS a Honda, so once you find out how to do it, the process should be simple enough ;)

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Post by arif_manji » Fri Dec 01, 2017 11:00 pm

Fixed by replacing the heater vent actulator :)
My Cars:
2022 Toyota Supra 3.0 GR PRO
Addictions...
1996 4th Gen Honda Prelude 2.2i VTEC (UK Spec - Converted from a H23A)
1993 4th Gen Honda Prelude 2.2i VTEC Auto LSD (JDM)
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