GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.
Home » Public Forums » GMCnet » Steel vacuum line to transmission modulator
Re: Steel vacuum line to transmission modulator [message #370404 is a reply to message #370403] Wed, 24 August 2022 18:25 Go to previous messageGo to previous message
RF_Burns is currently offline  RF_Burns   Canada
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma:
Senior Member
It should flow air in both directions. There is a restriction at the top end designed to slow down vacuum fluctuations. You may want to start there to see if there is a blockage at that point acting like a check valve.

Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that

Report message to a moderator

[Message index]
 
Read Message
Read Message
Read Message
Previous Topic: GMC spotted
Next Topic: GMC Sighting
Goto Forum:
  


Current Time: Mon Jun 24 07:05:37 CDT 2024

Total time taken to generate the page: 0.03958 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.1.1.
Copyright ©2001-2021 FUDforum Bulletin Board Software