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Vaccum modulator

F

fc3

Guest
Where is the vaccum modulator for my 400 Turbo located exactly? Does the vaccum line go to the front of the Q-jet(for the modulator)?
 
7

73BB

Guest
If I recall it is on the passenger side, toward the front of the pan on TH-400's, it's a small bronze cannister.

The vacuum source should come from a direct full-time source like right off of the intake manifold.

Hope this helps.
 
R

rpounds

Guest
On my '75, the vacuum source is on the intake manifold directly behind the carburetor, sandwiched in between the carb and the distributor. This is a threaded 'tree' that has two vacuum outlets, one of which goes to the tranny and the other to the vacuum accessories.
 
B

Bullitt

Guest
Mine is the same with the hose running to the vacuum port on the intake manifold off a hard steel line from the modulator. The hose is used only on the ends. The other port on the fitting feeds the vacuum tank.

--Bullitt
 

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