George Chapman wrote:
>
> Hi, John:
>
> Thanks for your response. I agree with the door vents as you
> described.

George,

I have two 1986 Syncros so I guess I am unfamiliar with the vent
arrangement on your later model rear windows. Also the door flow thru
venting works pretty well so I wonder why later models would appparently
have two flow thru systems.

You can check the efficiency of the system by placing your hand over the
door grill when cruising with all windows closed with the dash vents
open. You can feel a strong draft into the door grills indicating the
stale air is being replaced with fresh.

The flow is so noticeable that these door grills must be closed when
operating the A/C, since the A/C system is a recirculating system.
Otherwise the cooled air will be pulled out of the cabin instead of
being sent back to the evaporator for another round of cooling.

Which brings me to your comment that your late model does not have
sliding levers to open & closed these door grills. How can the later
models achieve maximum A/C cooling without closing these grills?

It may be that these door grills do nothing on later models with the
"window grills" providing the flow thru ventilation ! Let me know if you
door grills allow a draft a cruising speed. Also if the rear window
vents don't have an open/close mechanism, how do the later models
achhieve max A/C cooling?

Regards,        JP