| [GMCnet] Complete engine vacuum diagram for 1978 403? [message #337955] |
Wed, 17 October 2018 16:25  |
Dave Stragand
Messages: 307
Registered: October 2017
Karma:
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Senior Member |
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Hi All,
Does anyone have a complete diagram of the vacuum hoses on a 1978 403? A
previous owner has disconnected and/or removed most of the vacuum lines
on my coach, so I'd like to put it back to original (including a TVS
valve, and the vacuum control valve and solenoid valve if they are also
good to have).
I have seen several partial diagrams in the maintenance manual, but have
not seen anything that includes all of the carb and manifold vacuum
ports, and that also includes items such as the HVAC's vacuum line, the
snorkel heat valve, and the trans kickdown. Does a complete diagram
showing 'what goes where' exist?
Thanks,
-Dave
1978 Transmode near Pittsburgh
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1978 Transmode (403)
Pittsburgh, PA
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