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Vacuum Reservoir

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Old Apr 14, 2010 | 04:36 PM
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Default Vacuum Reservoir

I recently was replacing the rear bracket for my ECM and I accidentally broke the nipple off of the vacuum reservoir canister. Afterwards I plugged and sealed the hose that ran to it. My questions is if I really need to replace the reservoir. I understand that it stores vacuum, but so far I haven't noticed any ill effects. What are some instances that I would need the reserve vacuum while at full throttle? (braking, HVAC, Ect.)
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Old Apr 14, 2010 | 04:40 PM
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Originally Posted by luckeman
I recently was replacing the rear bracket for my ECM and I accidentally broke the nipple off of the vacuum reservoir canister. Afterwards I plugged and sealed the hose that ran to it. My questions is if I really need to replace the reservoir. I understand that it stores vacuum, but so far I haven't noticed any ill effects. What are some instances that I would need the reserve vacuum while at full throttle? (braking, HVAC, Ect.)
So you have a wide open vacuum leak now? Since the vacuum for the brakes is pulled right off the manifold, you most like won't notice anything. You have probably lost control over the A/C mode switching now i.e air comes out of all vents all the time.
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Old Apr 14, 2010 | 04:41 PM
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I broke mine as well...I cleaned it really good, prepped it the best i could and superglued it. This was the 2nd time mine was broken, when i bought the car the heat wouldnt move from defrost, and it was because this tank had the broken nipple on the bottom. Not sure if you really need the tank, if you capped it there. You would just have to have the car running to change vent positions, etc.
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Old Apr 14, 2010 | 04:48 PM
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Originally Posted by lucky131969
So you have a wide open vacuum leak now? Since the vacuum for the brakes is pulled right off the manifold, you most like won't notice anything. You have probably lost control over the A/C mode switching now i.e air comes out of all vents all the time.
No. I plugged the hose that ran to the reservoir. My HVAC system seems to be working properly, when running.
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Old Apr 14, 2010 | 05:10 PM
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Originally Posted by luckeman
No. I plugged the hose that ran to the reservoir. My HVAC system seems to be working properly, when running.
So you plugged the vacuum source line from the engine, but everything is working properly.....interesting.
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Old Apr 14, 2010 | 05:16 PM
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Originally Posted by lucky131969
So you plugged the vacuum source line from the engine, but everything is working properly.....interesting.
........

Last edited by luckeman; Apr 14, 2010 at 05:36 PM. Reason: post no longer valid
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Old Apr 14, 2010 | 05:34 PM
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After reviewing some pictures the only line no longer connected is from the vacuum reservoir tank (this has been plugged), all other lines are connected ( source, AIR solenoid and HVAC controls).

http://i137.photobucket.com/albums/q...19/vetteac.jpg
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Old Apr 14, 2010 | 05:42 PM
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Originally Posted by luckeman
After reviewing some pictures the only line no longer connected is from the vacuum reservoir tank (this has been plugged), all other lines are connected ( source, AIR solenoid and HVAC controls).

http://i137.photobucket.com/albums/q...19/vetteac.jpg
Ok....so everything will still work....just not during low/no vacuum conditions.
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Old Apr 14, 2010 | 05:53 PM
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Originally Posted by lucky131969
Ok....so everything will still work....just not during low/no vacuum conditions.
Yes I believe so, is there anything else I need to be concerned with?

PS Thanks for the replies
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Old Apr 14, 2010 | 06:25 PM
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Originally Posted by luckeman
Yes I believe so, is there anything else I need to be concerned with?

PS Thanks for the replies
Nope.
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Old Apr 14, 2010 | 08:12 PM
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Obtain a brass fitting from Home Depot or the hardware store that will fit the vacuum line and you can screw in and epoxy it into the tank. That way you back to stock an proper operation.

BC
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Old Apr 14, 2010 | 09:33 PM
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Originally Posted by Bill Curlee
Obtain a brass fitting from Home Depot or the hardware store that will fit the vacuum line and you can screw in and epoxy it into the tank. That way you back to stock an proper operation.

BC
Good idea. Thanks!!!
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