What are the best Saab repair shops?
RepairPal Certified shops can diagnose and repair your 1990 Saab 900. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
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Thanks for the suggestion. What is the temperature control and where is it? Part of the heater? CDACAM
Need to determine what type of system you have , cable or electronic controls (I don't have that info handy) , sorry. Next would be visually inspecting under dash , checking what items are visible (might have to remove lower covers) and which are responding to which controler(temp door , fresh/recirculate , mode -defrost-dashvent , floor etc. The whole SYSTEM is what you are inspecting , not just a single part.
Great. Thanks. Sounds like a week end spent on the floor of this great old car.
Have patience , a bright flashlight and the right pair of glasses(if needed). A helper to work controls while you observe would make things easier.