Paul wrote:
> "jim beam" <spamvortex@bad.example.net> wrote in message
> news:EoWdneTx25JVz1fYnZ2dnUVZ_qzinZ2d@speakeasy.ne t...
> air flow on full hot is not as high since air's having to blow through
> the heater matrix. if the air's not getting hot enough, check your
> coolant level [inside the radiator, not the expansion bottle] and make
> sure the coolant flow valve is operating properly.
>
>
>
> The air is hot enough, its the air flow which reduces, when directed through
> the matrix I guess suggesting the matrix is blocked or something similar.
> The fan noise rises significantly suggesting that something is blocked too.
> How much of the dashboard do I have to dismantle to get to check this out?
>
>
you can get an exploratory hand in by taking out the glove box and
removing the duct that goes between the fan and the heater core. gets
more complicated if you have a/c installed though. to get at the core
completely requires removal of most of the dash.