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My car overheats, particularly at idle.  Cooling fan control

My car idles poorly or erratically.  Check for vacuum leaks

What should I use in the 5-speed transmission?  10W30 or synthetic?
If synthetic, which kind and how to do it?  Saab's Procedure

My engine misses under boost/load.  Check the plugs

Fumes from the AC vents.  Fuel leaks/evaporative canister checks

Windshield fogs up when I use the defroster.  Heater core
and/or smell of coolant in the car
and/or wet floor mats.

Engine (turbocharged) dies when I stop or decelerate.  Turbo bypass valve

There's a funny noise  - like a whirring or whooshing - when I turn right.  Clean the evaporator drains

The clutch pedal feels weird/went to the floor - Clutch master cylinder

A lot of stuff keeps going wrong; what should I do?

The pictogram blinks when I use the turn signal or brakes.  Pictogram

What's that funny ticking/rattling noise coming from the dash?  Cabin air sensor

I can't get this damned clutch bled to save my life!  Clutch bleeding

My cabin blower motor only runs on high.  Blower controller transistor

My cabin blower motor vibrates excessively.  Insulation in the fan motor

My headliner fabric is coming loose.  Glue won't do

My radio won't come on after I disconnected the battery.  Radio code

There's a light but irritating knocking sound at idle.  Fuel pressure damper