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AC not blowing as hard as it should = Clean the coil(Ford F350)

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    #1

    AC not blowing as hard as it should = Clean the coil(Ford F350)

    I started by disconnecting the vacuum pump (2) 10mm bolts from the fender.


    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.


    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.





    I then inspected the coil and found that it was pretty dirty.



    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.






    This was the result.


    I then hit it with some coil cleaner I picked up at Lowes.




    I let it sit for a minute or two and then rinsed with water and I ended up with this.




    I dried everything out as best I could and then reassembled and tried out my AC. It works much better now
    Tags: None
    #2
    Wanna do Mine next?? I think I have a vacuum line off somewhere.

    Comment

      #3
      Originally posted by OBU13DAD View Post
      Wanna do Mine next?? I think I have a vacuum line off somewhere.
      That shouldnt be to hard to track down. There is a one under the glove box just above the carpet and the others run to the reservoir and the pump itself. If you dont have to get out to lock your hubs there will be a few more there.

      Comment

        #4
        Did you rinse it out with a water hose? or just the pump up sprayer?
        I may have to try this on my '02

        I found this to help lower my temps a few degrees too....
        MAX AC ASSIST AC Control Valve for 1994-2003 7.3L
        http://www.dieselsite.com/maxacassistaccontrolvalvefor1994-200373l.aspx
        This automatic heater core shutoff valve greatly decreases AC air temperatures

        Comment

          #5
          Originally posted by Palmetto View Post
          Did you rinse it out with a water hose? or just the pump up sprayer?
          I may have to try this on my '02

          I found this to help lower my temps a few degrees too....
          http://www.dieselsite.com/maxacassis...4-200373l.aspx
          I rinsed with a hose with a small wand set at shower. You can see it in the pics.



          I actually installed that yesterday. Not a bad install at all. I put mine in a little different location than they do in the directions though. Its a pretty quick install. Hardest part is fishing the vacuum line back through the firewall and up into the engine bay to connect to the valve. I just ran a fish tape down from behind the housing the blower goes in and pulled the line up an then routed it and made my connection.

          Comment

            #6
            I asked my mechanic about, about a week ago, about my suburban not cooling like it should. He told me to try doing this as well.

            Comment

              #7
              Here are some pics of the Max Assist installed. I wanted it closer to the firewall. Just make sure you cut the right line. I just followed it from the water pump back but be careful because it can get confusing where they are clipped together on top of the engine.


              I ran my vacuum line through this plug in the firewall (under the glove box)



              You will need to take two screws out (where my finger is touching and on the opposite side) and drop this panel (located under the glove box) to get at the white line to make your connections in the cab.


              I dropped my fishtape down here


              I then routed it through here and made my connection to the valve

              Comment

                #8
                Originally posted by Blast-n-cast View Post
                I rinsed with a hose with a small wand set at shower. You can see it in the pics.
                Whats on the other side of the coil? Seems like if water or the cleaner passes through, you wouldnt be able to get it all out.........

                Maybe im over thinking it?

                Comment

                  #9
                  Wish that was the case with mine. Did that last year and the ac still would not run cold all the time. My mechanic said there is a thing called GAP and it may be off and if not I may have to replace the whole unit. Two and half years without one and this year may be the year I pull the trigger to get it fixed!

                  Comment

                    #10
                    Originally posted by Silent Assassin View Post
                    Wish that was the case with mine. Did that last year and the ac still would not run cold all the time. My mechanic said there is a thing called GAP and it may be off and if not I may have to replace the whole unit. Two and half years without one and this year may be the year I pull the trigger to get it fixed!
                    Are you talking about the gap on your a/c clutch?

                    Comment

                      #11
                      Originally posted by Palmetto View Post
                      Are you talking about the gap on your a/c clutch?
                      Yes, sir!

                      Comment

                        #12
                        If your talking about the gap on the ac clutch you can remove the shim to get a little extra life out of it.

                        Comment

                          #13
                          Originally posted by Texas-Red View Post
                          If your talking about the gap on the ac clutch you can remove the shim to get a little extra life out of it.
                          Easy Peasy Lemon Squeezy

                          http://springerpop.net/F350/air_gap.html

                          Comment

                            #14
                            Originally posted by Palmetto View Post
                            Easy Peasy Lemon Squeezy

                            http://springerpop.net/F350/air_gap.html
                            Freakin' awesome! That's going to save me 600.00! Thanks! Will fix this next week since my schedule for this week is full and ranch all weekend to try finish that box blind and put few t posts for the front pasture.

                            Many thanks!!!

                            Comment

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