Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Exhaust system question

Thread Tools
 
Search this Thread
 
Old Mar 24, 2017 | 09:12 AM
  #1  
Aaron Gould's Avatar
Aaron Gould
Thread Starter
|
New User
Joined: Mar 2017
Posts: 3
Likes: 0
Exhaust system question

I have the 460 in 90 f250hd and running straight pipes into stacks in the bed. My question is about the two lines that connected to the converter. Im sure one is the return for mixture, and wondering if there is something special im supposed to do with these lines?
 
Reply
Old Mar 24, 2017 | 01:29 PM
  #2  
mark1986F150's Avatar
mark1986F150
Elder User
Joined: Sep 2012
Posts: 505
Likes: 7
if they're hoses they should be for the AIR (emissions) system.

You can disconnect them if you're not keeping the cats.
 
Reply
Old Mar 24, 2017 | 02:04 PM
  #3  
Aaron Gould's Avatar
Aaron Gould
Thread Starter
|
New User
Joined: Mar 2017
Posts: 3
Likes: 0
Hoses attatched to converter/catalic

They are metal hoses about 3/4 to an inch. I think I'll just cut and weld them back on top of the straight pipe. Dont want to end up with a vacume leak, even though its most likely for hot air mixture via emitions/egr, and I'm not sure why they are so far back on exhaust instead of conected to the header. I appriciate the reply and I think I got this.lol. Famous last words.
 
Reply
Old Mar 24, 2017 | 06:52 PM
  #4  
My4Fordtrucks's Avatar
My4Fordtrucks
Hotshot
10 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2015
Posts: 12,784
Likes: 2,422
No they aren't. They are for fresh air from the air pump to help clean up the emissions. They are not egr related.
 
Reply
Old Mar 26, 2017 | 07:53 AM
  #5  
Aaron Gould's Avatar
Aaron Gould
Thread Starter
|
New User
Joined: Mar 2017
Posts: 3
Likes: 0
F250 exhaust

Originally Posted by My4Fordtrucks
No they aren't. They are for fresh air from the air pump to help clean up the emissions. They are not egr related.
Ok. Good thing im in CA and the emission laws are so lax.lol. I think im going to have to put glass packs/cherry bombs on the end to avoid getting pulled over for being toooooooo loud.
 
Reply
Old Mar 26, 2017 | 09:47 AM
  #6  
My4Fordtrucks's Avatar
My4Fordtrucks
Hotshot
10 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2015
Posts: 12,784
Likes: 2,422
So the truck is for off road only? How are you going to pass the visual inspection in California without the catalytic converter and air injection system functioning? Over on a Jeep forum there are stories of their 30+ year old Jeeps failing inspection because of visual inspection even though it passes the tailpipe test.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Brnfree
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
8
Apr 12, 2015 10:18 AM
So-Cal Sancho
1987 - 1996 F150 & Larger F-Series Trucks
1
Jul 17, 2012 10:10 AM
xjpilot
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
7
Feb 14, 2012 11:37 PM
r0n1n
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
2
Oct 14, 2005 10:26 AM




All times are GMT -5. The time now is 07:11 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE