RE: {Chrysler 300} Vacuum Line Help Needed 300K

I went digging around the firewall and found a second vacuum line sticking out a bit. When I traced it, it is for the vacuum gauge. Now, can someone give me a check on this?

I thought the vacuum circuit went from that special fitting on the intake manifold, into the dash, then there is a Tee under the dash that one branche feeds the heater-ac switch and the other branch goes to the vacuum gauge.

Did someone re-route it at some point? Or was this factory?

James

From: chrysler-300-club-international@xxxxxxxxxxxxxxxx <chrysler-300-club-international@xxxxxxxxxxxxxxxx> On Behalf Of Rich Barber
Sent: Monday, December 5, 2022 4:19 PM
To: James Douglas <jdd@xxxxxxxxxx>; 'Chrysler 300 List Server' <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: RE: {Chrysler 300} Vacuum Line Help Needed 300K

Vacuum-powered door locks were offered on 1964 Chrysler 4-door sedans. Perhaps that second outlet is for the locks. Page 23-62 in the FSM references a line from the intake manifold to a vacuum tank. Is the unused nipple plugged or capped?

Rich Barber

Damp, CA

From: 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Sent: Monday, December 5, 2022 3:30 PM
To: Chrysler 300 List Server (chrysler-300-club-international@xxxxxxxxxxxxxxxx) <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} Vacuum Line Help Needed 300K

Hi All,

There is a large fitting on the rear of the intake manifold that is the vacuum source for the power brake booster. It has a small tap off of that fitting that goes to the dash, I presume for the heater-AC vacuum switch and the Vacuum Gauge.

My problem is that there is a black plastic “TEE” on that line above 2 inches above the manifold. One side heads to the dash like I mentioned above. But the other end ? Nothing on it. Where does that go?

Where does the vacuum gauge get its source. Under the dash if I remember correctly, so that is not it.

So, where does that other side of the “T” go ?

I have tried to find it in the Master Parts Book but without luck.

James

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