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If your heater fan works sometimes, and not other times, if the speeds get fast or slow, and if your heat smells just like burnt leaves, it is time to replace the resistor for your heater.....
Fixing the resistor for the heater:
1. Open the hood, look at the windshield wipers, pop of the black cap on each wiper that covers the bolt holding on the wiper. Put in a safe place.
2. With a pliers or appropriate ratchet, take off the bolt on each wiper which holds the wiper on. Keep in in mind how the wipers looked as far as orientation, and set aside marked left and right.
3. The next thing to attack is the plastic covering which buts right up against and runs the lenght of the windshield. To do this you must pull of a rubber strip which runs the length of the plastic cowling along the windshield. You will see what I mean. It is on the side of the cowling towards the engine, and it looks like the rubber pieces that go around the doors of the car and keep the air seal tight.
4. Next take the actual cowl off. You will need to jiggle it out from under the windshield molding, and will need to squish it right and left to work it out. You may also want to unattach the tube on the right end (which is windshield fluid tube) so you can take the whole thing out and put it on the ground or away from you somewhere.
5. Right there, in full view, you will see the filter. It is about 4" by about 14", and it snaps out easily. While you are in this area of the engine, you may want to buy the $30 filter at the Saab Dealer and replace it. It is often missed in routine maintenance.
6. You will then want to take out the next cowl too (in which the pollen filter sits) and lube up your fan. This second cowl does not pull out, it just slides accross. Take out screws along sides of cowl. Be careful with any wires, try not to tug on them. Along the edge of where the cowl sat, on the leading edge towards the front of the car, you will see a green thing about 3 inches long by 1 inch wide. Into that you will see wires going, lead through a black plug. Making sure your ignition is off, get the wire thing off. Now with a torx screwdriver, take the one screw out of the reisistor. Plug the new one in, replace the screw, and replace the wires with the plug. (the resistor cost $57 at Saab dealer in CT)
7. While in the area, check the fan for debris and lube the fan, now you just want to slide back the botttom cowl, screw into place, and snap in your new pollen filter.
8. Then you work the second cowl back under the windshield, reattach the tubes for the washer fluid, and put the rubber molding along the forward edge of the big cowl.
9. Now snap the wipers back on, put on the bolts and bolt covers, and as far as I remember, you are all set. Good luck. kk kk_smith@usa.net
(In my case my resistor was all rusted and coroded, and had caused the black plug to fail, so I had to order the black plug to and connectors for the ends of the wires, strip the wires, put the connectors on the ends of the wires, and then put the wires back into the plug before putting the black plug back into the resistor. There was also a tiny locking piece on the outside of the black plug which locked the wires inside the black plug. Just FYI)
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