No air movement

2007 FORD ESCAPE
150,000 MILES • 2.8L • 4 CYL • 2WD • AUTOMATIC
Avatar
JOSEPH RUDDEN
  • MEMBER
  • 3 POSTS
I have replaced the blower fan, the resistor, and cabin filter, still only small amount of air comes out. Fan runs in all speeds, vents will change position and low air in all vents. Any thoughts on what else to look at?
Sep 30, 2019 at 6:06 PM
Advertisement
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

From your description, it sounds like there is an obstruction in the vent system not allowing any airflow to any of the outlets.

I would remove the blower fan again and see if there is anything in the ducts. Get a bright light and look up in there and look for something in the ducts.

Did your replacement motor have a new cage on the end?

Roy
Sep 30, 2019 at 7:32 PM
Avatar
JOSEPH RUDDEN
  • MEMBER
  • 3 POSTS
I put the old cage on the new fan motor. I also have taken the fan and glove box out to see if anything was blocking it and as far as my hand could fit I didn't feel anything. I'm starting to wonder if the new motor spins opposite direction of the old one, I was going to switch the polarity and see if that works. Have you ever heard of that being a problem with replacement motors?
Sep 30, 2019 at 8:47 PM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Yes, it could be. Give it a try and let me know what happens.

Roy
Sep 30, 2019 at 8:53 PM
Avatar
JOSEPH RUDDEN
  • MEMBER
  • 3 POSTS
FYI..
It worked. switched polarity works great now.
That one goes in the mind vault, lol.
Oct 4, 2019 at 4:17 AM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good find.

Roy
Oct 4, 2019 at 4:23 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.