1989 LeSabre HVAC doesnt blow

[airportmark]

After I changed the controller all the air moves like its supposed too. But no flow, has to be the core. Got the stupid rubber cover thingy off and was trying to remove the plate when was called away. Hopefully will get it changed this afternoon.
thanks Mark

[Tech II]

I would put it on recirc, remove the resistor block or blower control module(keep connected), and turn the fan on high........if you have a lot of air flow out of the hole, you know there is blockage......

Not sure where the cabin filter is on this vehicle, if it indeed has one.....on the older models I seem to remember it being to the right of the gas pedal....there was a plastic cover you removed.....

[airportmark]

OK Here's the update. New evap core and a serviceable controller. The airflow changes as it should. The air conditioner cools but the airflow is better but still low. The fan runs on high and the selection of of recirculate doesn't change much. The door by the drivers foot sticks a little. There has been a new fan motor installed previously could that have been wired backwards? With the recirc door open wouldn't a backwards fan blow in there? The motor has a plug on it would be tough to wire backwards. Just spit-balling.
Mark

[DrRadar]

My experience is with the Grand Prix. Assuming similar construction, you should be able to unbolt the fan and motor while keeping it electrically collected. Run it and see if it sounds the correct direction. On that squirrel cage fan, it should spin such that the outside edge of each blade leads the inside edge.

Are you checking air flow at the center vents? Those blow more air than the outside vents in my car.

[airportmark]

OK Here's an update checked the voltage at blower motor on high and there's about a half volt drop from battery voltage so believe the the fan module is working OK.

[airportmark]

Another update. The fan module quit altogether. Got another module out of an 95 Park Avenue at Salvage yard and a used Delco fan motor. Installed the module first. Tha fan ran but no difference in airflow. Put in the used Delco motor and I now have a very nice and cold air conditioner. While the airflow I would not call robust it blows hard enough to be able to easily feel it on your face and at the vents would blow at a natch readily. Probably didn't need to change the evap but after getting it out no way would I put a used one back in. Enjoyed my commute home to nite mid nineties in western Colorado and once on the highway had a nice drive home. Thank you all for your help and hope I can return the favor. While I an not the whiz kid on these newer cars, If you've got fifties fords gimmee a call. Thanks again.
Mark

[bellaCuba]

wow! That's awesome! What a sense of accomplishment you must have too!! Really dig the great & detailed updates. That's what truly makes the forums work!

[DrRadar]

Nice methodical approach. Your updates were clear and thorough. We alkyl benefit from the combined shared experience of the forum.