My 1984 300 turbo d (new to me) blows cold air out of the wind shield defrost. Nothing out of the center vents and yes the're turned on. Is this a vacuum issue or a servo issue? In either case where do I look for vauum leak? I had the under the dash panel off and there are 2 (that I can see) pretty pink plastic things. Would those be the servos?
Any advise would be helpful
Thanks
wil