'93 Cruise Control vacuum line connection missing
Thread Starter
6th Gear
Joined: Jan 2008
Posts: 6
Likes: 0
'93 Cruise Control vacuum line connection missing
From the "T" fitting that is connected to the servo (above the
battery), one small plastic hose is connected to the vacuum tank ahead
of the left tire, and another small plastic hose about 4" long isn't
connected to anything.
My GM Service Manual Book 1 page 9B-3 Figure 4 doesn't show it
connected to anything!!
Logically it should go to the intake manifold, but I can't find a place
for it.
Can someone look on their equivalent Vette and tell me where it is
attached?
battery), one small plastic hose is connected to the vacuum tank ahead
of the left tire, and another small plastic hose about 4" long isn't
connected to anything.
My GM Service Manual Book 1 page 9B-3 Figure 4 doesn't show it
connected to anything!!
Logically it should go to the intake manifold, but I can't find a place
for it.
Can someone look on their equivalent Vette and tell me where it is
attached?
Last edited by 93 White - Texas; Feb 12, 2008 at 12:18 PM. Reason: spelling
Le Mans Master
Joined: Feb 1999
Posts: 9,916
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
This hose, t fitting goes to this, the thinner hose going by the fuse box
The T line under the master cylinder goes back into the wiring harness here
The fatter line, on top, goes to under the brake booster.
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
In this picture:
http://i33.photobucket.com/albums/d8...h/DSCF0413.jpg
The larger line on from the cruise control top goes to the "T" fitting under the ASR.
The line from the "T" toward the front goes to the small vacuum reservoir.
The line from the "T" towards the back of the engne goes around the engine under the right injector cover for vacuum source.
The other vacuum line that goes down under the brake booster goes through the firewall to a vacuum switch on the brake pedal.
This vacuum switch shuts off cruise when you hit the brake.
Tom Piper
http://i33.photobucket.com/albums/d8...h/DSCF0413.jpg
The larger line on from the cruise control top goes to the "T" fitting under the ASR.
The line from the "T" toward the front goes to the small vacuum reservoir.
The line from the "T" towards the back of the engne goes around the engine under the right injector cover for vacuum source.
The other vacuum line that goes down under the brake booster goes through the firewall to a vacuum switch on the brake pedal.
This vacuum switch shuts off cruise when you hit the brake.
Tom Piper
Pro
Joined: Mar 2006
Posts: 519
Likes: 22
From: Golden CO
See this thread, great cruise control info - Actuator noise?
by Bill Dearborn, really details out the CC operation, it just helped me figure something out.
http://forums.corvetteforum.com/show...ntrol+actuator
my question is still, the actuator - if that's the device above the battery on my 92 C4, has direct cable to throttle and two vacuum lines, like in the photos above - mine is noisy! There must be a spring of some sort in there and on bumps it rings like a chime these days. Curious if I should open it up..
thanks
DW
http://forums.corvetteforum.com/show...ntrol+actuator
my question is still, the actuator - if that's the device above the battery on my 92 C4, has direct cable to throttle and two vacuum lines, like in the photos above - mine is noisy! There must be a spring of some sort in there and on bumps it rings like a chime these days. Curious if I should open it up..
thanks
DW
Pro
Joined: Mar 2008
Posts: 579
Likes: 2
From: High Bridge New Jersey
Can I jump in and ask
Can you tell me the exact routing and connections for the HVAC vacuum source? I am having one heck of a time getting it right on my 1991 L98 that the previous owner butchered, any help you can provide is greatly appreciated, thanks!!
Joe
Joe
