Exhaust Y Pipe
Thread Starter
|
5th Wheeling
Joined: Feb 2016
Posts: 22
Likes: 2
From: St. Paul, MN
Exhaust Y Pipe
I have a 1994 F150 5.0L 4x4 Regular Cab Short Box. When I pull up to a stop light and idle I see stars from the exhaust fumes leaking into the cab. There are several rust holes that cant be welded due to their size. The dealership wants $1900 to replace the y pipe, cats, and pipes from front to back. I'm 100% disabled from my 23 years in the US Army so saving $2K would take me 10 years. I am trying to locate the correct part number for the Y Pipe and cats. The same dealership told me that I need the pipe that has the EGR Tube, and Valve assembly, but the previous owner deleted the air pump and plugged that pipe. If this doesn't make sense, I'm sorry, but I'm so confused. I was hoping to be able to buy the pipe and bolt it in myself, but I can't seem to find the right pipe. The one part number I have is 5F250 for a Dual Converter Y Pipe. Is that correct? Since the air pump system was deleted do I need the Y Pipe with the 9J454 Tube, Valve Assembly?
You folks are all so smart that I thought you may be able to help me. I tried going to the junk yard but they just saw all the cats off and wreck the pipe. Thank you for your time and consideration.
You folks are all so smart that I thought you may be able to help me. I tried going to the junk yard but they just saw all the cats off and wreck the pipe. Thank you for your time and consideration.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Most direct replacement cat converters have an air line attachment but you can just leave that capped. Summit Racing has a selection of Y-pipe/converter packages for these trucks, here is an example.. 1994 FORD F 150 Flowmaster 2020057 Flowmaster Direct Fit Catalytic Converters | Summit Racing
SPONSOR
Joined: Feb 2020
Posts: 322
Likes: 106
From: Ohio,Georgia,Nevada,Texas
OP,
We like Walker Exhaust because they can get you squared away from the Y-Pipe to the tailpipe and everything in between. With this being the regular cab short box you should have the 117" wheelbase.
Y-Pipe/converter assembly
- WLK-15742
Muffler
- WLK-22460
The correct Tailpipe will depend on the style of bed you have.
For Styleside bed
- WLK-45006
For Flareside bed
- WLK-45454
You'd need three of the following exhaust clamps. These will be used to connect the converter to the Y-pipe and then the converter to the muffler. Then there will be one used to connect the muffler to the tailpipe.
- WLK-35336
You'd need one of the exhaust isolators for the rear of the tailpipe.
- WLK-35460
Let us know if we can be of any further assistance. We'll be happy to help!
We like Walker Exhaust because they can get you squared away from the Y-Pipe to the tailpipe and everything in between. With this being the regular cab short box you should have the 117" wheelbase.
Y-Pipe/converter assembly
- WLK-15742
Muffler
- WLK-22460
The correct Tailpipe will depend on the style of bed you have.
For Styleside bed
- WLK-45006
For Flareside bed
- WLK-45454
You'd need three of the following exhaust clamps. These will be used to connect the converter to the Y-pipe and then the converter to the muffler. Then there will be one used to connect the muffler to the tailpipe.
- WLK-35336
You'd need one of the exhaust isolators for the rear of the tailpipe.
- WLK-35460
Let us know if we can be of any further assistance. We'll be happy to help!
Hotshot
Joined: Jun 2015
Posts: 12,831
Likes: 2,436
Exhaust Gas Recirculation (EGR) and Air Injection are two completely different systems.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
It' doesn't connect to the EGR system, it is part of the air injection system. It would connect to a metal check valve first and then to a rubber hose that connect to a diverter valve that directs air into the back of the cylinder heads or to that pipe that runs down to the cat.
Trending Topics
Thread Starter
|
5th Wheeling
Joined: Feb 2016
Posts: 22
Likes: 2
From: St. Paul, MN
Got it.
The repair shop told me it was part of the EGR, and I said I thought it was part of the air induction. The mechanic basically shamed me for being dumb. I guess he was the dumb one. So is it possible to buy a Y pipe minus the cats without that return line or do I need to buy a Y pipe with cats and just block off that pipe?
It' doesn't connect to the EGR system, it is part of the air injection system. It would connect to a metal check valve first and then to a rubber hose that connect to a diverter valve that directs air into the back of the cylinder heads or to that pipe that runs down to the cat.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Hotshot
Joined: Jun 2015
Posts: 12,831
Likes: 2,436
The tube is to inject fresh air into the catalytic converter to get it up to temperature faster. The check valve is there to prevent exhaust gas from going any further upstream. Even though the air pump is gone, I would put a converter on it. A stock replacement will have the tube which you can leave capped (as stated in post#2) or you might be able to find a “Y” pipe and install a generic cat without the port.
FTE Chapter Leader
Joined: May 2006
Posts: 12,338
Likes: 1,314
From: Central Mississippi
Just a note to keep in mind; the air injection system is designed to inject air into the exhaust for approximately the first 5 minuets or less of cold operation to help the less efficient cats of the era to "fire off".
After that, it's done. The more efficient cats currently produced do not need this additional air to come up to temp or multiple cats to do the job of one.
After that, it's done. The more efficient cats currently produced do not need this additional air to come up to temp or multiple cats to do the job of one.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Thread
Thread Starter
Forum
Replies
Last Post