C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Vacuum Diagram 86 ???

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Old 12-04-2007, 01:01 PM
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combustables
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Default Vacuum Diagram 86 ???

Hi All,

I can't seem to find a vacuum diagram in the FSM or the Haynes manual. I found it on the autozone web site but it was not clear at all and didn't enlarge or sharpen well at all.

So, does anyone know where thje vacuum routing diagram exists in the FSM and or even online?

Engine still shaking and running on 7 cylinders after hitting a pothole and I need to elimintae vacuum leaks.

Thanks
Lee
Old 12-04-2007, 01:15 PM
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Ray Quayle
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Does this help?
Old 12-04-2007, 09:41 PM
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wOw!!! Thank you soooo much Ray!. Perfectly clear diagram and very much appreciated :-)
Old 12-05-2007, 01:17 PM
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Originally Posted by leefarah
wOw!!! Thank you soooo much Ray!. Perfectly clear diagram and very much appreciated :-)
No problem Lee, glad that's what you needed.
Old 12-05-2007, 05:08 PM
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Where abouts is the "tank pressure control valve" located, I cannot see it in my 87

Thanks
Old 12-05-2007, 08:25 PM
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AGENT 86
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Originally Posted by Ray Quayle
Does this help?
I believe that drawing is from a newer L98. On my 86, canister vacuum is from intake base port (shared with PCV), no TB connections.
Old 12-05-2007, 10:27 PM
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On my 86, canister vacuum is from intake base port (shared with PCV), no TB connections.
Old 12-06-2007, 02:02 AM
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Ray Quayle
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Originally Posted by AGENT 86
I believe that drawing is from a newer L98. On my 86, canister vacuum is from intake base port (shared with PCV), no TB connections.
Dan, you're right, I posted the wrong diagram.:o I guess old age is catching up to me.
Old 12-06-2007, 08:30 AM
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Originally Posted by Ray Quayle
Dan, you're right, I posted the wrong diagram.:o I guess old age is catching up to me.
We are only human, Ray
I have never seen the correct vac diagram, posted for 86, nor do I have one in my FSM.
Here it is doctored up.
Old 12-06-2007, 08:31 AM
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Originally Posted by convas
Where abouts is the "tank pressure control valve" located, I cannot see it in my 87

Thanks
Beside the charcoal canister
Old 12-06-2007, 09:36 PM
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Thanks Agent 86, looks like it is missing from my car.
Old 12-10-2007, 01:51 PM
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Originally Posted by AGENT 86
We are only human, Ray
I have never seen the correct vac diagram, posted for 86, nor do I have one in my FSM.
Here it is doctored up.
Felt so bad about posting the wrong diagram, here is the one for the '86:

Much the same as Dr. Dan's, but now he can say he's seen the correct vac diagram for the 86 posted.
Old 12-10-2007, 03:19 PM
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Thanks Ray, I saved the pic
Where is the diagram from ??
Old 12-11-2007, 01:25 PM
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Originally Posted by AGENT 86
Where is the diagram from ??
Dan, Just took a pic of the label on the Radiator shroud.
Old 12-11-2007, 03:13 PM
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Originally Posted by Ray Quayle
Dan, Just took a pic of the label on the Radiator shroud.
I was thinking about doing the same.

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