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What is this thing??

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Old Mar 7, 2012 | 02:10 PM
  #1  
pbtrilogy's Avatar
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Joined: Jul 2009
Posts: 156
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From: Greenville, NC
Car: 1985 Z
Engine: 89 305 TPI
Transmission: 700-R4
Axle/Gears: OSD 10 bolt/ 3.42
What is this thing??

This thing is in the engine bay towards the back..any idea what it is? What it does? is it important? ect...

And what should the unconnected black tube connect to?
Attached Thumbnails What is this thing??-imag0519.jpg   What is this thing??-imag0518.jpg   What is this thing??-imag0517.jpg  
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Old Mar 7, 2012 | 03:04 PM
  #2  
capj66's Avatar
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Joined: Jul 2011
Posts: 9
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From: Northeast
Car: 1987 IROC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: Borg Warner 9-Bolt Disc 2.77
Re: What is this thing??

Looks like the EGR control valve, one of those vacuum lines runs to the EGR valve and the other to the Trottle Body up front on the bottom. If you are running the EGR still you will have to hook it up. My opinnion is to leave it as it was EGR working properly.
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Old Mar 7, 2012 | 03:08 PM
  #3  
305sbc's Avatar
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Joined: Nov 2001
Posts: 2,428
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From: Fairview Heights Illinois
Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
Re: What is this thing??

Yep, EGR solenoid.
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