Could anyone help me in finding a vacuum line sketch/schematic for my 2010 Ranger 2.3 W/AC.
someone altered the lines and I can't seem to mfind a schemartic or diagram showing me how to
get them right again.

 

There are only like 3-4 lines on the 2.3 DOHC ranger, what lines are you worried/concerned about?

 

Before it got screwed up I remember a T in the line and two vac lines going to the resivioir. There is no T now. I don't know what lines go to resivior or
on which side of resivior, and my heat/AC fan blower no longer changes by the ****. no matter what I switch it to, it just comes out the defrost vents.

 

On the back of the intake, there should be a nipple to the passenger side. That nipple (among other possible systems) is the vac feed for the HVAC system. I cannot recall if that feeed is used for anything else, as the truck is not right in front of me right now (2001.5 2.3 ranger owner myself)

From that nipple, the line should go down to the passenger fender well, where there will be a plastic bulb of sorts on the fender liner. That is a vacuum reserve for the HVAC system. One end will receive vac from the engine, the other side will lead from the bulb to the firewall, where the vac line goes into the cab. There should also be, by this line, a grey vac line that comes out of the firewall. The grey line goes to the heater core bypass valve, which is the funky H shaped looking thing with 4 coolant hoses sprouting from it, and a vacuum actuator+valve. I cannot recall the exact location of where the lines enter/exit the truck, but I want to say its near the heater core hoses at the firewall. Do not quote me on that.

With all that in mind, if any of the two lines are broken/melted (very common as the lines cross over the exhaust manifold and become brittle with heat) they will cause a "default defrost" setting, as the HVAC will always blow air through defrost in case of a HVAC selector failure, to ensure the vehicle can remain drivable (defrost windshield). If both lines are broken, or both are present, you'll need to test the reservoir to make sure you hook the system back up in the correct orientation. You'll want to apply vac to either nipple. One side will allow air to be drawn through, the other side will pull vacuum. There is a check valve in the reservoir, to keep vac in the HVAC system and the reservoir so that the HVAC does not constantly flap back and forth as your truck moves from vac to atmospheric pressure while driving. The side that allows you to draw air through it will be the side that should be connected to the intake. Once vac is applied to the unit, it remains in there. The check valve will close the inlet side when it needs to, and the other nipple (that allowed vac to be drawn against it) will be the end you want to hook up to the HVAC line in the firewall.

You can always "guess" instead of testing, and just start the truck. If the lines are backwards, you'll have the same result. If they are correct, you should be good to go! If it still doesn't work, then you'll be required to draw vac on the system, reservoir included, to make sure that there are no breaks or leaks present.

Sorry for the long winded response, I hope this helps!

 

Thank you very much. I will check it out. I know there was a tee in there before which is not there now. Any info about that?

 

Without looking at my truck and comparing mine to yours, I honestly am drawing a blank on the T. I can take a look at my truck tonight and see if I can locate anything