[DMCForum] Re: Air flow differences between hot & cold

["therealdmcvegas" <dmcvegas@xxxxxxx>]

A somewhat reduced amount of airflow is normal on any car. When you
increase the heat, you're moving a flap to force more air thru a
radiator coil, otherwise known as a heater core.

Normally you shouldn't really notice too much of a change at all. At
most, you *might* hear the sound pitch of the air change as it comes
out of the vents. But for what you're describing, it sounds like the
fins on your heater core are plugged up.

-Robert



--- In DMCForum@xxxxxxxxxxxxxxx, Ryan Wright <ryanpwright@xxxx> wrote:
>
> Is this normal?
> 
> When I turn the temperature knob from cold to hot, the air flow drops
> dramatically. Doesn't matter whether I'm on vent, heat, defrost, etc.
> Air flows strongly on cold. The more you turn toward hot, the less air
> you get. All the way to hot and the air just kind of trickles out.
> 
> It's not a fan problem; the fan stays at the same speed and works fine.
> 
> I'm going to check the foam thing at the back of the heater box
> tonight. In the meantime, if anyone has any ideas, I could use them.
> 
> --
> - Ryan
> http://www.memfrag.com - Store your bookmarks. On every computer.
>

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