The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Heater blower stopped working with AC Delete

**HO455** · 12-13-2023, 05:03 PM

Since you had AC and need defroster power you might consider using your old AC blower motor and some of the old AC wiring to give your heat/defroster blower an upgrade. I got about 80% more airflow over my old blower when I was done.

Link is to how I did mine. Starting at post 871 on continuing on to the next page.

http://67-72chevytrucks.com/vboard/s...698377&page=35

And as other folks have said we need more information. What wires have you connected to what would be a good start.

12-13-2023, 05:03 PM	#4
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,903	Re: Heater blower stopped working with AC Delete Since you had AC and need defroster power you might consider using your old AC blower motor and some of the old AC wiring to give your heat/defroster blower an upgrade. I got about 80% more airflow over my old blower when I was done. Link is to how I did mine. Starting at post 871 on continuing on to the next page. http://67-72chevytrucks.com/vboard/s...698377&page=35 And as other folks have said we need more information. What wires have you connected to what would be a good start. __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377