Question about Cars & Trucks
I have a 1990 olds royal and the blower fan for the heating and cooling only runs on high. i check the relay and that is working fine. next step was the resister but iam not real sure it is located. some are under the dash and some are behind the blower motor itself. i dont want to tare things apart that dont need to be. thank you dean
Hi Dean, I don't really know what you mean by the register, but I believe your problem is to do with the resistor which is built into the fan housing. It consists of three wire wound resistors and is fitted into the fan housing to take the benefit of the fan to cool the resistor pack. The climate fan at full speed runs directly from the battery voltage. The lower speeds run through the relevant resistors (which are of different values) and thereby run the fan at decreasing speeds. Remove the covers from the both sides of the fan housing and on one side you will see a small panel held in position be one or two screws. The panel will have cables plugged into it, which are those for the fan. To confirm you have the correct panel, turn on the ignition and the fan at full speed and disconnect the plug from the socket. the fan will stop and bingo! you have it! Remove the unit and either repair the unit or better still go to a breakers yard and buy a replacement from there before they wreck it! Fit it in, connect the plug, put back the paneling and enjoy. Regards John
Posted on Feb 18, 2012
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Posted on Jan 02, 2017
As it turns out, the dealership sent me the wrong part so there is no wonder why I couldn't find it.D'oh! They sent me the heater relay switch by mistake and of course they look nothing alike.I would like thank you for your help and will remove the post so as not to cause any grief for anyone.Thanks again.
Posted on Jan 08, 2009
Remove the screws on the glove box, then on the side of the dashboard you will see two caps. Remove the caps and you will see two nuts that you have to remove. once you have removed the bolts, you can remove the straps on the blower and evaporator. once you remove the straps have some one help you lift the end of the dashboard up carefully to give you room to remove the blower. and disconnect the connectors. You will have to play a little bit to remove because of the tight space.
Posted on Jul 22, 2009
SOURCE: my fan for the Ac
the blower resistor is in the plenum... above the heater core.
If the blower motor does not work at all ... you may have a bad climate control switch.... or blown fuse even... as the resistor is a two stage coil... Low speed and medium speed... no resistor on High and would normally not go at the same time....
Posted on Sep 30, 2010
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