What is the tube off the passenger exhaust?
#1
Junior Member
Thread Starter
Join Date: Nov 2016
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Car: 91 Z28
Engine: 5.7
What is the tube off the passenger exhaust?
I have been reviewing the forms, service manual and Google but I have not been able to figure out what this part is. I’m assuming it’s part of the EGR system. It is the tube that runs off the top of the passenger side exhaust and back under the intake. Mine is leaking and I need to figure out part numbers or at least descriptions so I can get parts ordered.
91 z28 350
Thanks
91 z28 350
Thanks
Last edited by Barnyard; 08-29-2018 at 06:37 PM. Reason: Add eng description
#3
Senior Member
Re: What is the tube off the passenger exhaust?
Sounds like someone put in some corvette parts.
google corvette tpi or look up the manual for a tpi corvette.
the vettes thst had aluminum heads had the egr tube come off thr passanger side exhaust manifold and feed into the intake at the back by the distributor.
google corvette tpi or look up the manual for a tpi corvette.
the vettes thst had aluminum heads had the egr tube come off thr passanger side exhaust manifold and feed into the intake at the back by the distributor.
#5
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,453
Received 1,837 Likes
on
1,397 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: What is the tube off the passenger exhaust?
Yeah that's not the usual arrangement for our cars. It came on TPI Vettes because their heads were different.
But yes, it is the EGR tube. (or hose, sometimes) Look it up for about a 89 Vette and see what you get.
But yes, it is the EGR tube. (or hose, sometimes) Look it up for about a 89 Vette and see what you get.
#6
Supreme Member
iTrader: (10)
Join Date: Sep 2000
Location: Moorpark, CA
Posts: 2,426
Likes: 0
Received 165 Likes
on
119 Posts
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: What is the tube off the passenger exhaust?
I think he is talking about the A.I.R. tube. Barnyard, if you follow the tube does it go all the way to the catalytic converter? If so, then it is part of the smog system. It pumps air into the cat to help combustion.
#7
Junior Member
Thread Starter
Join Date: Nov 2016
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Car: 91 Z28
Engine: 5.7
Re: What is the tube off the passenger exhaust?
Thanks guys, I thought i was going crazy. Here is the picture, but it looks just like tealman92's photo, just not as good as shape. I will check out the vette's
Trending Topics
#8
Supreme Member
iTrader: (10)
Join Date: Sep 2000
Location: Moorpark, CA
Posts: 2,426
Likes: 0
Received 165 Likes
on
119 Posts
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: What is the tube off the passenger exhaust?
Yup, Tealman is correct. That is an EGR passage.
#10
Supreme Member
iTrader: (1)
Join Date: Sep 2005
Posts: 26,453
Received 1,837 Likes
on
1,397 Posts
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: What is the tube off the passenger exhaust?
That's an AIR part... exactly the same, except different.
Thread
Thread Starter
Forum
Replies
Last Post
ramicio
Engine/Drivetrain/Suspension Wanted
5
08-09-2013 05:25 PM
torqueaddict
TPI
1
08-23-2007 12:36 PM
vincode8
Engine/Drivetrain/Suspension Wanted
3
06-16-2006 05:53 PM
Meatwad
Exhaust
3
06-03-2005 04:35 PM