help! typ44: exhaust smell when heater is on

[JordanVw at aol.com]

In a message dated 1/30/04 1:57:05 PM Eastern Standard Time, 
knotnook at traverse.com writes:


> In addition to Cobram's list of things to check, make sure your seal at the
> top of the firewall (on the front lip of the rain diverter that covers the
> HVAC well) is intact. 
> 
> At 01:01 PM 1/30/2004 -0500, cobram at juno.com wrote:
> >The heater box is sealed, there is an accordion hose that goes over to
> >the evaporator and fresh air intake.  It's all located under the cowl
> >shroud.  Take 2 minutes, remove the cowl cover and see if anything
> >strange is going on.  While you're there clean out the leaves, acorns and
> >?? that's under there.
> >
> >A few guesses, without looking at the car:
> >
> >1. You have an oil leak which is burning off after a while and the fumes
> >are making their way into the cabin.  "Oil" in this case covers hydraulic
> >fluid, brake fluid, coolant and motor oil. BTDT.
> >
> >2. Might be the smell of burning coolant, could be bad heater core,
> >heater hose loose or leaking, or heater valve.  BTDT
> >
> >3. Your blower motor may be on it's way out, and what you're smelling is
> >smoke coming off the electricicles.  A blower motor on it's way out will
> >smell like the protective coating burning off a new exhaust component.  
> >BTDT
> 
> 

the seal is new - so is plenum cover (from a 90) and heater blower motor is 
new too.  no coolant smell, just exhaust smell when heater on..