need more help
Today, I finally had a chance to do like everyone said and check the vacuum lines under the hood. I changed out the check valve at the vacuum resevoir, replumbed the vacuum lines at all locations. Interestingly enough, since a modulator valve was only $12 at Autozone, I picked one up and low and behold, when I took it out, it was trashed! New one installed with proper new vacuum hose eliminated the parking situation whereas I couldn't shift the car out of park. I'm happy about that. So, I still have no vents on dash though and it is stuck in defrost mode. I plugged the cruise module, put the HVAC on A/C "MAX" and from outside the car held my hand over the vent and nothing happened when I physically plugged the vacuum line going to the cruise module. I then proceeded to unplug the hose going to the check valve at the brake booster. The car immediately started idling rough, like I suspect you all referred to in earlier posts. Physically plugging that hose with my thumb made no change in vent either. I am leaning towards a faulty upper or lower actuator on the car. The electronic blend door actuator works fine when switching from hot to cold. (I can see it moving since I have the glove box tray out.
Has anyone ever run into this before? Keep in mind, I already changed the vacuum control head and the switch on the HVAC control on the dash....
The only other vacuum I didn't check was the vapor line switch//////?????