If the fan is making a screeeeching noise, then the bearings are about to fail and it needs to be replaced. If you move the fan speed to max and the fan works, but doesn't at any other speed, then it is probably the resistor. If the lights on the recirc/ac switches blink after start up, then there is a message stored in the computer.
Your 1994 probably does not have a cabin filter and leaves and other bits of trash may have fallen in and are causing the fan to get sluggish. Go to Sears and get a set of Torx drivers, there is a multi driver set for less than $5 whicch folds up and fits in the glove box. You will need it to do almost anything inside the car.
Women can wrench just as well as a man. And if you go to the dragdown menu at the top right of the page, you will find 700/900 FAQ, which will explain how to read the diagnostic trouble codes.
Depending where the compressedd air tube comes apart, determines the problem. If it comes off at the throttle body, then I suggest you tighten the clamp as hard as you can.
Klaus
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The 164 has a new home, all I am left with are a 95 854T and a 98 V70R :)
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