Modulator for Transmission

Ok, have got some apparent issues with how my vacuum lines have been done. I will go thru that and get those items checked off before I test the
vacuum at the modulator further. Will give a update once I goe thru the vacuum lines.

Thanks,
Tom
 
I still think you are going to find the problem is with the governor, NOT the modulator.
--
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles,
Solar battery charging. GMCSJ and GMCMI member
 
> http://www.gmcmhphotos.com/photos/dual-vacuum-distributor/p63297-1977-vacuum-schematic.html
>
> http://www.gmcmhphotos.com/photos/misc-junk/p40243-vacuum-connections.html

I found both of those.

The first one does not show the modulator connection.

The second one does, but it is not labeled as such.

I was incorrect in my original statement. I do not have the Christmas tree or the tee shown and I forgot that I removed both 10 or more years ago.

So using the second diagram you should plumb the hoses as as shown. The hose that goes off to the left in the diagram is the one that connects to the
steel line going to the rear of the intake and on to the modulator.

I'm sorry for the incorrect information in my previous posting.

Thanks Billy for posting the correct diagram which made me revisit what I was seeing on the diagram.

Ken B.

--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
No worries Ken, the help is much appreciated. The more I look at the vacuum hose arrangement compared to the info you guys sent, the more I see things
are all jacked up on their routings. I think this will do it for the mechanic I took it too. Will have to get on the hunt for another one here in KC.
I'll bring it over to my house this weekend and get all this straightened out. Really hope I get lucky for once and get the shifting issue resolved
with doing it. If it doesn't, not sure if I have the skill set to mess with anything else. Will call Dunn next.

Thanks Ken,
Tom