Help with vacuum line connections

[Wonderpop]

Hello all,
I pulled the motor in my Ranger last week and overestimated my ability to remember where to connect all of the vacuum lines. Does anybody have a picture or video or readable diagram of the vacuum lines for a 1990 w/ 2.9, automatic, a/c, and cruise? I've got it running, but the a/c won't come on and the idle seems a bit lower than before. I wish I had made a video of myself taking the lines off.

Many thanks,
Chuck

 

[8sechonda]

http://s595.photobucket.com/albums/tt38/my77cobra2/?action=view&current=VaccumeDiagram.gif

is this what u need bro?

 

[Wonderpop]

I'm afraid I'm not smart enough to figure it out from that. A picture of an actual engine would be great. I've got one small vacuum line coming from what looks to be part of the a/c unit on the passenger side firewall that I can't find a place to plug in. That may be the only one I've got wrong, but I'm not sure.

 

[8sechonda]

oh ok srrry man, i dont remember wher my pics are when i built mine are, but u may look in a haynes book or chilton manual, one of those has a diagram pic cant remember which one if not both... good luck man

 

[Wonderpop]

Thanks for the reply. A friend at work found it for me today. I'd forgotten about a connection on the underside of the throttle body behind the big hose that goes to the air box. I'll try to get some pictures up for anybody with similar issues.

 

[mr_manny]

Are there vacuum diagrams available online for later Bronco IIs?

Have a new to me 1990 XLT Bronco2, 5spd and 4x4.
Discovered this loose line coming from the vacuum reservoir (round plastic tank on the passenger side) when I was cleaning the engine compartment.

Wondering if it connects to the rubber item I've circled.

Thanks in advance

 

[Brain75]

there's no 1990 specific diagram in the tech database (just a gap between 1st gen and 1991), but from the '91 the line from the reservoir goes first to the check valve and I would bet the 1990 would be the same..

Ford Ranger Engine Vacuum Hose Diagrams - The Ranger Station

(1983 Ford Ranger 2.8L V6 Engine Vacuum Diagram) (1984 Ford Ranger 2.3-Liter 4-Cylinder Vacuum Line Diagram) Vacuum Diagram Definitions Abbreviation Description A/CL Located in the air cleaner A/CL DV Air Cleaner Diverter Valve A/CL BI MET Air Cleaner Bi-Metallic Valve … Continued

www.therangerstation.com

I have a 1990 (ranger not bronco 2), but they are identical under the hood excepting for accessories (my XLT doesn't have cruise [yet] or AC)... tomorrow when there is enough light in the shop I can take a pic if you are still fighting it.

sidenote, when we get a good drawing we should ping Jim Oaks with it to have it added to the tech database.

 

[Brain75]

well now I remember why we don't have a good vac drawing the Haynes has nothing, the Chilton has "too much" - they print all 6 emissions versions of each engine for dozens of dozens of pages of drawings except they are all 6 to a page and so tiny you can't read anything - plus the printers didn't get perfection on reproduction so they are illegible at best. Why print 4 identical copies of the same drawing teeny tiny... why...

I pulled my camera in really close and took a closeup of each unique, but can't read it on the original or the picture - just completely illegible.

The addition of the MAP is the only difference I see...

 

[mr_manny]

The other end of the hard plastic line attaches to a check valve, circled below:

 

[Brain75]

I was in the 'yard today and saw several examples 2 or 3 bronco ii's and a couple rangers. That line goes directly to the manifold tree (which is what my 1990 ranger does as well).

 

[mr_manny]

Thank You Sir.
Appreciate the assistance.

 

[bobbywalter]

old necro thread pulled it out. hell yeahs

 

[JMDone]

I have a parallel problem with the A/C vacuum lines on my 1990 2.9L XLT auto. From/to the A/C vacuum reservoir, a line runs to the vacuum check valve, as in the image posted here. But there in is the problem. That check valve is just floating out in space, with neither of its two other connection points actually connected to anything. Cannot see any open vacuum lines, even around the manifold or anywhere else. Just hope the other ends have not have dropped below the engine. Have checked vacuum line diagrams on line and looked over the posts here, but cannot see where the connections at the check valve need to be reinstalled as suspect they where disconnected awhile ago.
Will as always appreciate the guidance.

 

[Brain75]

I don't have AC, but if I understand it correctly, that is the supply line from the manifold to the air cleaner box (MAF) and the AC - mine does not have the T and check valve... so the 3 end of that are MAF/ AC / Manifold. (mine just runs straight from manifold to MAF since I do not have AC)

on mine that is a teeny tiny hard plastic line not a typical 3/8 rubber and it connects on the bottom hidden port of the manifold, underneath where you have to stand on your head or use a mirror to see it.

 

[mr_manny]

I have AC, will post pics tomorrow.