Re: [GMCnet] Fresh air to ac blower question [message #210054 is a reply to message #210013] |
Thu, 06 June 2013 07:03 ![Go to previous message Go to previous message](/GMCforum/theme/default/images/up.png) ![Go to next message Go to previous message](/GMCforum/theme/default/images/down.png) |
Steven Ferguson
![United States United States](/GMCforum/images/flags/us.png) Messages: 3447 Registered: May 2006
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Daryn,
The problem is not so much caused by emissions from the vehicles around
you while in traffic, it is mostly all coming from your own engine
compartment. Ducting from another location is nearly impossible because of
the proximity of the access panels and the wiper mechanisms. If you have a
'75 or '76, the solution is to change it over to a complete recirc system
by opening up the original hole from the cockpit to the rear HVAC plenum,
and blocking off the underhood intake. The system will also perform much
better this way. Here is an excellent article on the different types of
systems GM used on the GMC. The best is the '77 and '78.
Steve F
On Wed, Jun 5, 2013 at 6:50 PM, Daryn <An87ttype@hotmail.com> wrote:
>
>
> Im wondering if anyone has come up with a way to get fresh air to the
> blower intake. I notice that when stopped I sometimes get the smell of the
> hot motor coming through the vents. I was thinking about putting some kind
> of hose to draw the air from lower down somehow. Maybe from behind the
> bumper? The problem seems the amount of room by the opening in the blower
> box. The windshield wiper arm also swings in front of it. It's really not
> that bad, but I do find it somewhat annoying sometimes. Any thoughts?
> --
> 1975 Eleganza II
> Hudson Valley NY
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--
Take care,
Steve
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