1990 80q No heat

[Huw Powell]

> I am definately not looking forward to looking into this.  But, its 20 degrees here in Maine tonight, and I don't drive so well when I'm shivering.  I suspect a clogged heater core as well, but someone suggested a stuck valve that I haven't been able to locate.  I'm flipping through the Bentley and I can't find it in there either.  The valve is supposed to be in the engine compartment I guess, but I don't see it.  I am getting no heat at all, its like the outside air is just venting inside the car.

The heater core on the type 89 (like yours) is "always on".  there is no
heater valve, what it has is a flap that divides the passenger air
between outside fresh air (cool) and air that went through the heater
core (warm).

if one hose is hot and one is cold, odds favor a clog.

try undoing them both carefully at the engine/head ends and running hose
water through them, both ways.

otherwise, the cable that runs the cold/hot flap might not be
functioning properly.

You are not going to enjoy going into your dashboard to fix these
things...

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/