Corvette C4 Forum 1984 through 1996

Found the Vacuum leak, Where does it go?

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  #11  
Old 03-17-2007, 12:57 AM
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Default RE: Found the Vacuum leak, Where does it go?

ORIGINAL: thespannerboys

and seems to go to a electronic relay of some sort bolted right next to it.One hoseat the very bottom of the Cylinderis a piece of tube that is cut off.
The "relay" is actually a vent solenoid for the evap system, it has 2 vacuum hoses on it.
 
  #12  
Old 03-17-2007, 01:15 AM
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Default RE: Found the Vacuum leak, Where does it go?

I found some pictures but theDamn thing won't let me upload, keep getting an".ASP error.
 
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Old 03-17-2007, 01:19 AM
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Default RE: Found the Vacuum leak, Where does it go?

Pics

[IMG]local://upfiles/1427/09F45B95EFDE41658FC5983BDAA80798.jpg[/IMG]
 
  #14  
Old 03-17-2007, 01:21 AM
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Default RE: Found the Vacuum leak, Where does it go?

more pics

[IMG]local://upfiles/1427/DF3BCF197EEF4F93A6598DD798DE41B9.jpg[/IMG]
 
  #15  
Old 03-17-2007, 01:28 AM
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Default RE: Found the Vacuum leak, Where does it go?

more pics, sorry for all the posts, but they seem to be having server problems!!!!
Well crap, will send more tomorrow! [:@][:@][:@][:@]
 
  #16  
Old 03-17-2007, 03:36 AM
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Default RE: Found the Vacuum leak, Where does it go?

I think its funny how the same cars are always a little differnt. Its almost the same set up, but little things are differnt. Does the ball have one or two hoses? Mine has one hose from the top, and in the pic there is one hose from the bottom. Differnt year maybe? Does the Cylinder Canister next to the "relay" have a hose from the very bottom?
 
  #17  
Old 03-18-2007, 03:29 PM
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Default RE: Found the Vacuum leak, Where does it go?

I found the problem with the leak. I traced the tube from the "Relay" with two hoses coming out. The one on top went all the way back to the rear of the engine compartment. When Ifound the end it was plugged with a bolt!!! so I unplugged it and ran it up to the PCV tube just above the driver side valve cover. All the curves in the hose matched the contours of the valve cover so I plugged it back in. YEAAHHHH good day, now I replaced my ECU from another problem, and now Im getting a CODE 51....Bad PROM.... But it doesnt want to go into Diag. Mode. It went into Diag. mode just once and that was by default, even with a new ECU. I have read that a bad PROM can prevent you from getting into Diag. Mode, is this true? one thing after another, But its coming along.....productive, frustrating progress
 
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