AC Vacuum
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 40
Likes: 0
From: Arlington Texas
AC Vacuum
The dealer said I have a vacuum leak at the AC module located on the back of the engine next to the oil pressure sender. This controls the
mode, doors, for my AC. I know what the oil pressure sender looks like..
But, does anybody have a picture of the AC control module.
I had my AC fixed Friday 6/13/2008 All vents switch on all modes and gets really cold now.
Dealer has to remove intake manifold and fix broken vacuum line to vacuum tank that controls
the AC doors. Cost was $441.00 to fix. I am disabled from a stroke and could not do the repairs
myself.
mode, doors, for my AC. I know what the oil pressure sender looks like..
But, does anybody have a picture of the AC control module.
I had my AC fixed Friday 6/13/2008 All vents switch on all modes and gets really cold now.
Dealer has to remove intake manifold and fix broken vacuum line to vacuum tank that controls
the AC doors. Cost was $441.00 to fix. I am disabled from a stroke and could not do the repairs
myself.
Last edited by Stroke03; Jun 15, 2008 at 03:01 PM.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
No such thing as an "AC module" at the back of the engine. There is however a small (and very short) 1/8" (O.D.) black nylon vacuum line that hooks up to the rear of the intake manifold. It sometimes gets overlooked when guys take their intake manifold off for a swap or to replace the EOP sender and doesn't get hooked back up.
Sounds like this dealer is trying to make something exotic sounding out of a simple re-connect of the vacuum line.
The bad news is that you will have to remove, or at least move forward, the intake manifold to get to it. Lot's of guys have made a simple extension to the line with items easily available at your local auto parts store, so next time it's much easier to hook up and gives you enough slack to not be a problem.
HTH
Sounds like this dealer is trying to make something exotic sounding out of a simple re-connect of the vacuum line.
The bad news is that you will have to remove, or at least move forward, the intake manifold to get to it. Lot's of guys have made a simple extension to the line with items easily available at your local auto parts store, so next time it's much easier to hook up and gives you enough slack to not be a problem.HTH
Race Director
Joined: Jan 2007
Posts: 16,513
Likes: 4
From: Official Dirty Dozen Member
there is a piece that connects to the manifold in between the vac line and manifold.
trust me it can leak, there is an orange multilayered O-ring that can fail.
I can pull an intake in 7 minutes and have it back on in 10 ( with a 1/4 inch drive air wratchet) .
trust me it can leak, there is an orange multilayered O-ring that can fail.
I can pull an intake in 7 minutes and have it back on in 10 ( with a 1/4 inch drive air wratchet) .
Thread Starter
Intermediate
Joined: Apr 2008
Posts: 40
Likes: 0
From: Arlington Texas
Thanks, that line may supply vacuum to AC Control module that controls
the doors for floor, dash etc. I have replaced my oil pressure sender by the cut method and I can take off the cover I made and go back in through that hole. Dealer said somebody had replaced that vacuum line
with a line that was too big and it would not stay on fitting. So you are
properly right. Thanks again.
the doors for floor, dash etc. I have replaced my oil pressure sender by the cut method and I can take off the cover I made and go back in through that hole. Dealer said somebody had replaced that vacuum line
with a line that was too big and it would not stay on fitting. So you are
properly right. Thanks again.
Burning Brakes
Joined: Dec 2003
Posts: 1,066
Likes: 9
From: Eddy Texas
There' are a few good pics of that vac fitting in this thread. It's beotch to get to with the manifold on.
Also make sure you don't have a leaking battery issue, as the acid can destroy that vac line where it runs under the battery tray.
http://forums.corvetteforum.com/show....php?t=1966898
Also make sure you don't have a leaking battery issue, as the acid can destroy that vac line where it runs under the battery tray.
http://forums.corvetteforum.com/show....php?t=1966898
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Thanks, that line may supply vacuum to AC Control module that controls
the doors for floor, dash etc. I have replaced my oil pressure sender by the cut method and I can take off the cover I made and go back in through that hole. Dealer said somebody had replaced that vacuum line
with a line that was too big and it would not stay on fitting. So you are
properly right. Thanks again.
the doors for floor, dash etc. I have replaced my oil pressure sender by the cut method and I can take off the cover I made and go back in through that hole. Dealer said somebody had replaced that vacuum line
with a line that was too big and it would not stay on fitting. So you are
properly right. Thanks again.
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