Whats this part
Thread Starter
Pro
Joined: Sep 2006
Posts: 702
Likes: 2
From: Conyers Ga
Whats this part
After changing my oil today, I was doing a little engine inspection and found a broken vacum line. It's the part below the one with the two wires on it and shaped like a square. The vacum line comes from the front of the car, T's off and one line goes to the left side of the part and the other, which I have unplugged goes to the top connection which you can see. It's mounted just to the rear of the thermostat housing and below the TB.
any ideas?
BTW, it's an 88
any ideas?
BTW, it's an 88
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
That's the vacuum part of the EGR Sol which controls the EGR Valve.
Though you can likely patch the line with rubber hose, I picked up a new line a few years ago for my '88. Over time and temp. cycling those hard plastic lines become brittle and easily crack & break.
Though you can likely patch the line with rubber hose, I picked up a new line a few years ago for my '88. Over time and temp. cycling those hard plastic lines become brittle and easily crack & break.
Burning Brakes
Joined: Aug 2000
Posts: 1,146
Likes: 2
From: Albuquerque NM
TPI? The line coming from the TB is the vacuum source line for the EGR valve. GM added an electronic switch also to this vacuum (the wires in your pic). From the switch it goes the EGR valve underneath the plenum.
This was the first repair I had to make on the vette. A cracked vacuum connection to the TB
This was the first repair I had to make on the vette. A cracked vacuum connection to the TB
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
The hard line are integral to that flat rectangular piece; the rectangular piece then plugs into the EGR Sol.
It pulls straight back along the top of the intake base.
It pulls straight back along the top of the intake base.
Last edited by 65Z01; May 4, 2008 at 08:43 PM.
Thread Starter
Pro
Joined: Sep 2006
Posts: 702
Likes: 2
From: Conyers Ga
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
