THe blower motor is under the dash. You will have to take out the glovebox and half of the dash to get up in there, but if you have the time and the energy you can fix yourself. Will have to disconnect heater core hoses under the hood
The above answer is just plain wrong! This is not an uncommon problem.
Tools needed Philips head screwdriver, DMM (Digital multimeter) The blower motor is on the right passenger side, underneath the glove compartment & dashboard. Area between floor and above, in the general area of the lower right passenger side floor light.
Disconnect the negative battery cable.
Remove the plastic screws holding the trim carpet by pulling on them. Use a small screwdriver to pry them up if necessary.
Remove the light so that you may remove the trim completely.
Where it gets awkward: looking upward you will see the blower motor cover with three screws approximately 120 degrees apart. Lower the passenger seat completely, position body to that head goes underneath area where trim was, facing upward of course. Remove the screws. As you remove the screws, the actual blower will come into view.
Remove the rear hose attached to the blower.
Remove or cut the wires attached to the blower. If you cut them be sure to note the color and read an Oldsmobile wiring diagram to determine polarity. If you cut them: splicing in longer segments will make the installation easier.
Using the DMM check the blower wires for continuity. If checking resistance the value should be low ohms, an infinite (very high) reading indicates an open. If low, check the fuses.
Installation is the reverse of removal. If you have made splices, make sure the splices are secure and use electrical tape or heat shrink the junctions.
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This could be caused by a fuse being blown or the blower motor itself could be faulty. I would start by checking all your fuses which can be located under you drivers side dash and under the hood of your vehicle. If this does not rectify the problem you will need to replace or have the blower motor replaced. It's located under your passenger side dash usually behind the glove compartment in a plastic housing that must be removed before you can gain access to the blower motor itself.
remove lower right dash insulator panal from beneath glove box. slide bcm aside to get to blower. remove the three screws holding the blower motor, pull blower and fan straight out. remove fan from old blower if replacing with a new motor. good-luck!!
Blower motors generally last about 120k miles(in Minnesota) They have brushes which eventually wear out. As they wear there is less tension on them against the comutator and so it requires more voltage to get them to run. Thats generally why "Hi" on the control is the only one that will make them run close to the end of thier life. This dose not rule out the control itself or the resistors. The resistors are located under the glove box behind the blower. Remove them and visually check their condition. Measure them with an ohm meter, they should all be less than 20 ohms. Remove the control and check it for overheating. Switches like to become resistive and overheat, melting the plastic frame and the plug. If all checks good replace the blower motor. You could check the motor by applying 12 volts to it and it would probably run but now that its removed its been bumped around and the brushes are making better contact. So don't be tricked. Like I said, if it has alot of miles on it (time) your better off with a new one anyway.
Run's continuously ? High speed , low , med 1,2, 3 . ????
Probably the high speed relay contact's stuck closed . The fuse for the high blower is hot at all times , low blower fuse is hot only with key on. It sparks becaused the motor turns on . If it had a short the fuse would blow . The blower motor relay is part of the resistor pack near the blower motor .
R u sure u tested it correctly? There will be a 30 amp fuse usually associated with the blower motor however u need to look at the motor connections with a meter set to ac. These newer cars use a pwm type drive which is a pulsating dc voltage similiar to ac and should vary in amplitude as u turn ur control for speed. If u have that then ur motor is bad and has to be replaced.
for the first problem, it sound as if the blower motor resistor has gone out. this is a very simple repair and the part does not cost very much. If you can locate the blower motor, the resistor should be on the left side of the blower motor.
for your second problem, it sounds as if the remotes need to be reprogramed.