Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
New showcase items
New showcase comments
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Showcase
New items
New comments
Latest content
Latest reviews
Latest updates
Search showcase
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Power Strokes
7.3 Tech
AC not blowing as hard as it should = Clean the coil
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
[QUOTE="Gulfcoast, post: 702262, member: 11175"] [B][SIZE="2"]I noticed my AC was not blowing as hard as it should so I took a look at the coil and it was pretty gunked up. I cleaned it and I am now back in business. I put together a play by play just in case anybody has a similar problem and does not know how to get at the evaporator. I am sure there are other issues that can cause similar symptoms, but in my case I have already changed out the resistor, blower motor and the blend door actuator so I ruled those out. [/SIZE][/B] [B][SIZE="3"]I started by disconnecting the vacuum pump (2) 10mm bolts from the fender.[/SIZE][/B] [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0517_zpsa39b615d.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0517_zpsa39b615d.jpg[/IMG][/URL] [B][SIZE="3"]Next I unbolted the vacuum reservoir: (3) nuts that you get to from the wheel well. I forgot to get a pic of this but its pretty self explanatory. I then was able to move these (without disconnecting the electrical or vacuum lines) out of the way to make room to allow me to remove the blower motor. [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0518_zps3db0c339.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0518_zps3db0c339.jpg[/IMG][/URL] I unplugged the electrical connector feeding the blower and disconnected the rubber hose at the bottom of the plastic housing. I then removed the (3) 8mm screws and removed the blower. I had to twist it a bit and maneuver around some hoses but it came out. [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0516_zps084cbc79.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0516_zps084cbc79.jpg[/IMG][/URL] [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0519_zpsa019825a.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0519_zpsa019825a.jpg[/IMG][/URL] I then inspected the coil and found that it was pretty dirty. [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0523_zpsea4d4b32.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0523_zpsea4d4b32.jpg[/IMG][/URL] I sprayed it with some Simple Green concentrate (undiluted) and let it sit for about 2 minutes. I used a canister type sprayer with a long wand that I could bend to get good coverage of the surface of the coil. I then hosed it off with a small watering wand set to shower. [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0524_zps60f52887.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0524_zps60f52887.jpg[/IMG][/URL] [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0525_zps2bff67c1.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0525_zps2bff67c1.jpg[/IMG][/URL] [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0526_zpsef7a562d.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0526_zpsef7a562d.jpg[/IMG][/URL] This was the result. [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0527_zps821ebabc.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0527_zps821ebabc.jpg[/IMG][/URL] I then hit it with some coil cleaner I picked up at Lowes. [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0528_zpsc4b79f02.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0528_zpsc4b79f02.jpg[/IMG][/URL] [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0530_zps1011fba3.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0530_zps1011fba3.jpg[/IMG][/URL] I let it sit for a minute or two and then rinsed with water and I ended up with this. [URL=http://s175.photobucket.com/user/jasonposes/media/Truck/F350%20Condensor%20coil%20clean/DSCN0532_zps653bbede.jpg.html][IMG]http://i175.photobucket.com/albums/w144/jasonposes/Truck/F350%20Condensor%20coil%20clean/DSCN0532_zps653bbede.jpg[/IMG][/URL] I dried everything out as best I could and then reassembled and tried out my AC. It works much better now[/SIZE][/B] [/QUOTE]
Insert quotes…
Verification
Post reply
Random media
Latest posts
6R140 surging issue
Latest: Sterling6.7
Yesterday at 10:52 PM
6.7 Tech & FAQ
Won’t start
Latest: psduser1
Wednesday at 11:33 AM
7.3 Tech & FAQ
GT37 Turbocharger w/10 blade turbine, billet comp.
Latest: hskfab
Jun 6, 2025
Engine and Drivetrain
Hard steer question/issue
Latest: psduser1
Jun 5, 2025
7.3 Tech
B
WTS/WIF light flash and stall issue
Latest: blickcd
Jun 5, 2025
6.0 Tech
Members online
No members online now.
Forums
Power Strokes
7.3 Tech
AC not blowing as hard as it should = Clean the coil
Top