dash vents


Old 08-22-02, 04:07 PM
Thread Starter
Join Date: Aug 2002
Posts: 5
dash vents

1994 chevy lumnia ,dash vents cut off when accelerating.floor vent still blowes.
Sponsored Links
Old 08-22-02, 05:22 PM
Visiting Guest
Posts: n/a
Vacuum problem.

Check for split vacuum lines under the hood and to the vacuum reservoir (looks like a softball on many GM's).
Old 08-22-02, 05:24 PM
Join Date: Dec 2001
Posts: 2,538
it could be a number of things from a leaking control switch to bad vacum resorvoir, bad vacum line, bad check valve that goes inline on the vacum line. i would start by checking the vacum lines for leaks and the vacum resoirver if they check ok i would change the inline check valve.
assuming that this is a lumina car i believe the vacum line runs along the left fender down by battery to underneath the battery tray to a vacum resoirver and has a t fitting and check valve in the line between the fender and the mastercylinder check this line all the way from engine to resoiver and to where it enters fire wall or wiring harness loom for broken or cracked vacum lines if it is ok it will likely be the check valve that is bad.
Old 08-23-02, 06:58 PM
Thread Starter
Join Date: Aug 2002
Posts: 5
dash vents

94 chevy lumnia-I found it right away. It was a broken vacum line,from the vacum resevoir. Thank you

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes