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 Recirculate Mode Intake

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urbanski_m
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PostSubject: Recirculate Mode Intake   Mon Jul 07, 2014 9:47 pm

Does any one know where the air intake is for the HVAC recirculate mode on a 97 Riviera?  I want to deodorize the HVAC system in my car and need to spray the cleaner into the interior intake while in Recirculate mode.  I tried to find it myself with the system on high, but couldn't.   Pictures would help
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bigdave
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PostSubject: Re: Recirculate Mode Intake   Mon Jul 07, 2014 10:04 pm

Using a piece of paper under the dash is the best way to find it. I have never done it on a Riv, but have on other cars. With fan on high and on recirc mode, wave a piece of paper around under the dash until you feel it getting sucked in.
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deekster_caddy
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PostSubject: Re: Recirculate Mode Intake   Tue Jul 08, 2014 4:07 pm

If you have to 'deoderize' I would be willing to bet that what you really need to do is push a heavy wire (coathanger) carefully up into the drain (on the firewall, near the power steering pump, looks like a small duck's bill facing down) and let the water out. That will most likely make any unusual odors go away.
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albertj
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PostSubject: Re: Recirculate Mode Intake   Tue Jul 08, 2014 7:32 pm

deekster_caddy wrote:
If you have to 'deoderize' I would be willing to bet that what you really need to do is push a heavy wire (coathanger) carefully up into the drain (on the firewall, near the power steering pump, looks like a small duck's bill facing down) and let the water out. That will most likely make any unusual odors go away.

...and if that does not work, make a deodorizing solution of OdoBan (available at Sams Club and HomeDepot) per label directions, about a gallon of it in hot tap water, and pour it into the air intake on the drivers side just below the windshield wiper.
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urbanski_m
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PostSubject: Re: Recirculate Mode Intake   Wed Jul 09, 2014 9:23 am

deekster_caddy wrote:
If you have to 'deoderize' I would be willing to bet that what you really need to do is push a heavy wire (coathanger) carefully up into the drain (on the firewall, near the power steering pump, looks like a small duck's bill facing down) and let the water out. That will most likely make any unusual odors go away.


Derek,

how far should the coat hanger wire go?  I don't want to do any damage.
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deekster_caddy
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PostSubject: Re: Recirculate Mode Intake   Wed Jul 09, 2014 4:42 pm

urbanski_m wrote:

deekster_caddy wrote:
If you have to 'deoderize' I would be willing to bet that what you really need to do is push a heavy wire (coathanger) carefully up into the drain (on the firewall, near the power steering pump, looks like a small duck's bill facing down) and let the water out. That will most likely make any unusual odors go away.



Derek,

how far should the coat hanger wire go?  I don't want to do any damage.

I'd guess 3 inches or so. You just have to break through the layer of crap clogging the drain, and you'll start getting wet. Then you'll know it's time to stop. wink
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