photo identify vacuum hose with unique connector.

[Rich P.]

Re: photo identify vacuum hose with unique connector.

OK you have the large tee at the source end so then the tube was also used to function as a in line splice to another same size hose to go to the vacuum source on the dial control. If you follow all the hoses from the dial control you will find the hose and possible the firewall grommet.

[John M.]

Re: photo identify vacuum hose with unique connector.

Thanks Rich, I found nothing in the AIM to support how it connects, but will see if any hoses are disconnected from the controls.

I would assume it would have the same pinch clamp on the other end so it should be an easy find.

Minor detail to overlook in the replacement Hose kit. (not a productive night)

Thanks Again.

[Kenny C.]

Re: photo identify vacuum hose with unique connector.

John

[John M.]

Re: photo identify vacuum hose with unique connector.

I scoured the AIM trying to find signs of AC and now that I know what I'm looking at, am also certain it's not an AC car. That had me going last night pretty good though.

It's strange because the AIM specifically lists this splice for AC, and I can find nothing in the AIM about it for Astro-ventilation.

Not doubting that it is, I just can't find supporting documentation.

I also found a post referancing the same hose for AC applications.

Strange.

[Don L.]

Re: photo identify vacuum hose with unique connector.

John, are you saying this is on the LH side at the firewall?

I have a steel tube/hose/tee assembly VERY similar to your early pic on my RH firewall at the hood latch area. It is the vac pick up that feeds and controls the heat/def controller in my '72 non-A/C conv at the shift console.

Be VERY careful not to break that little plastic tee. Don't ask me how I know...

[John M.]

Re: photo identify vacuum hose with unique connector.

No, this appears to be the exact lengths, colors, and splice point as the Large yellow wire that attaches to the middle port on the Wiper Door actuator relay mounted on the driver side firewall area. Runs from the relay to the vacuum canister on the drivers side.

With that annoying small, little hose running off it.

[Rich P.]

Re: photo identify vacuum hose with unique connector.

John,

check your 69 AIM UPC 1 Sheet M3. You will find number 9 pt # 3929022 to be the plastic TEE you will also find number 10 pt # 3891759 to be the small hose clamp and you will see the hose coming from the astro vent controls along with the grommet on it. This is not for a/c cars and was what I was explaining to you last night. Also somtimes its hard to find the inside tube as it sometimes snakes under the firewall insulation.

Rich

[John M.]

Re: photo identify vacuum hose with unique connector.

Now it's crystal clear. And looking at the hole section (0) Sheet A10, I found the other end of the hose exiting the firewall next to the wiper motor with the same clamp on it (hidden down out of sight) and waiting to clamp onto the metal splice tube.

(which explains why I couldn't find anything for it to connect to under the dash) 2 splices on engine side of firewall.

Beautiful.

Thanks for your help (and patience) Rich.

[Rich P.]

Re: photo identify vacuum hose with unique connector.

Hey John,

no problem sometimes I'm not the best explainer and I forget how it was for me to figure this same problem out almost 30 years ago working on one of my first 69's. At that point I had no AIM or discussion bord to help.
Just glad to be of help.

Rich

[John M.]

Re: photo identify vacuum hose with unique connector.

I'm just glad I have such a correct, unbastardized car to start with. Otherwise, I would have never even noticed I was missing something, and have all of the original T's and connectors.

I don't know if this was a mid year change, or common on all 69's, but if common, they certainly should have it included in the vacuum hose kit.

I had to pull out that cheesy Kenwood stereo anyway so at least tearing the Dash apart wasn't a total waste.

We're getting close.

[Jamie F.]

Re: photo identify vacuum hose with unique connector.

I have that exact setup on my '69. The small hose goes to the heater control vacuum supply line that enters the firewall on the right side by the heater box and is in the center console. It is spliced into the yellow striped hose for the wiper relay. The splice is over by the left hood latch. The small hose connects into another small hose that extends it's lenght, that's what the small clamp and fitting is for. If you look over by the right side firewall you should see the small hose coming out from under the dash. This hose connects to the small one on your picture. The wiper relay was orginally over on the right side and when it was moved to the left side firewall I think they used the extention piece with the fitting to make it reach over there to the new location and the new splice location.

[John M.]

Re: photo identify vacuum hose with unique connector.

Interesting, so a mid year change?

How about the vacuum hoses, do the majority route behind the wiper motor?

[Jamie F.]

Re: photo identify vacuum hose with unique connector.

No hoses go behind the wiper motor, even thought it looks like a good idea. There are two firewall clips that the hoses go into on top of the wiring harness. They run in front of, and a little below the wiper motor.

[John M.]

Re: photo identify vacuum hose with unique connector.

Well that saves me a ton of rework. I could have sworn it looked like they should route behind the motor per the AIM.

Nice, procrastination was on my side today.

[Jamie F.]

Re: photo identify vacuum hose with unique connector.

Some of the repro hoses are thicker walled than the originals. Dr Rebuild makes a big point of it on his website. If you have the thicker ones it can get tight back there between the ignition shielding and the hoses.
There are a couple pictures in the AIM in regards to hose routing that are somewhat wishful thinking. I recall the picture in the AIM of the white hose that comes out of the firewall, that is reality routes nothing like it is shown. Also on my car the wiper position switch hoses were taped together separately from the wiper door actuator hoses, but they were then tied together with the plastic T ties.