Coolant Bubbling in 90Q

[rlliss at rockwellcollins.com]

This is my second time sending questions into the List on this coolant
system problem.

(Huw/Tony) - I still  don't have heat, but It has been too damn cold to do
anything here on car.  I think I have 2 problems occuring that are not
necessarily related.

Coolant Bubbling:  When the engine is hot, I am getting a flow of gas
(emissions or air)  back into the coolant resevoir.  The pressure escapes
from the cap in convulsions every 15 seconds until it cools down.  The flow
of gasses has increased noticably over the last 4-6 weeks- requiring
additional coolant (to keep the annunciator light off) on a daily basis.
My thought is there must be some engine gases getting into the coolant
system.  (Head Gasket leak??)  Anyone had this experience?

Heat: I believe my heat door is stuck.  I havent gotten into the box to
know...  I am getting flow thru the core however.  I am now more concerned
about resolving the coolant issues than the comfort of having heat in my
vehicle.

Thanks

Ray
1989 90Q