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Vacuum Leak ?

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Old 10-06-2008, 08:24 PM
chet chet is offline
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Default Vacuum Leak ?

My truck truck wont idle right, sometime when the AC is on it switch from vents to up by the windshield where to air comes out to defrost the front windows. It also makes a huge sucking sound when i am accelerating. I was wondering if this sounds like a vacuum leak and where the vacuum lines are located on my truck so i can go about changing them or checking them ?
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Old 10-06-2008, 09:35 PM
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i have the same problem and would love to find it as well, only thing is i cant find the leak because my cold air intake is the same sound
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Old 10-06-2008, 11:53 PM
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thats what im running into. Although i took my cold air intake off and the sound is coming from the throttle body or behind it or below it somewhere...
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Old 10-07-2008, 12:04 AM
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Default Hvac

I have the same problem and its due to either a bad or missing vacum canister
you can either install one or replace the one you got there is more on this in the threads:

http://www.dodgeforum.com/m_868975/tm.htm
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Old 10-07-2008, 12:16 AM
iwhitne iwhitne is offline
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same problem here.. as soon as you let off the throttle it stops.. hit it hard and it starts again! really a pain in the neck!
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Old 10-07-2008, 01:53 AM
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ya i was slowing down to turn a corner the other day and it just shut off...
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Old 10-07-2008, 06:30 AM
JBs DAK JBs DAK is offline
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Do this;run the truck, (in park only) with your Brake-Booster vacume line
blocked off. See if it still does it. It will help over come your leak do to the
fact the booster draws a lot of vac.
If not, your leak is pretty small and will be hard to find.
Then, start looking at all your lines. Use a squirt-bottle with a little
Dish-washing fluid in it and start wetting down your soft lines around
the manifold and back by the firewall. Have someone rev and then get off the
gas a few times while looking at what you got wet. You should see bubbles if you got a leak.
Also, check under the dash. See if you or a passenger got their feet up under
there where they don't belong and snagged something.
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Old 10-07-2008, 09:11 PM
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im looking for the canister that alot of people are replacing anyone have any idea how to locate where this thing is located ?or all the lines thanks
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Old 10-07-2008, 09:11 PM
 
 
 
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