Exhaust noise
Thread Starter
|
Freshman User
Joined: Oct 2006
Posts: 26
Likes: 0
Exhaust noise
I was at a friends house last summer in Spokane WA. and he has the same 97 F250 powerstroke that i have, and his sounded awsome! He told me that he was running straight pipes, no cat or muf. Wanting the same, I had my cat and muff removed and replaced with straight pipe. Here's the problem, when its cold, instead of hearing the turbo wind up, it make a real loud sound, like a jet engine blow dryer. Once it warms up, it goes away and the nice turbo sound returns. It happens a lower rpms and when I increase speed it will go away. One more thing, if its really cold..say below 0.. it never goes away. Even after a 100 mile run. I live in Alaska now so my warm days are numbered. Do I need to put something back on to keep the pipes warmer, do I have a leak, or is it a turbo issue?
Laughing Gas
Joined: Oct 2009
Posts: 882
Likes: 11
From: Eastern CT
Could it be your exhaust back pressure valve (ebpv) ? I would guess that is what you are hearing. I unplugged the ebpv on my truck. The plug is located kind of under the turbo and intake plenum on the drivers side.
Red
Red
Posting Guru
Joined: Mar 2009
Posts: 1,799
Likes: 0
yes sir that is your exhaust back pressure valve. it closes in the outlet of your turbine housing and it warms up the engine. the computer closes the valve VIA high pressure oil to warm up the block, its essentially on because your engine and or oil is not warm enough. yyou probly havent noticed it as much before becuase you had your muff and cat on, but when your straight piped like 93% of us you will noticve it MUCH more lol
you can disconnect it by thethe 2 prong dongle on the under side of the compressor under the intake boot on the turbo. it wont hurt anything. its preffrence.
you can disconnect it by thethe 2 prong dongle on the under side of the compressor under the intake boot on the turbo. it wont hurt anything. its preffrence.
Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
It's to help the ENG. warm up a little quicker but mine been unplug for 3 years now and i don't think it make that much of a difference.
Trending Topics
Logistics Pro
Joined: Jan 2005
Posts: 4,129
Likes: 4
From: Brandon, MB
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
Senior User
Joined: Jan 2010
Posts: 132
Likes: 1
I read about this ... using the valvew as an exhaust brake.
What RPM range does it work?
How easy was it to set up?
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
The range of the RPM, its better above the 2000 RPM but works well in most of the RPM, you just need to disconnect both (exhaust and lock up switches) before to stop, or the engine will stall.
Senior User
Joined: Jan 2010
Posts: 132
Likes: 1
I have a manual transmission.
Is it as easy as running power to the valve and activate it by a switch when needed?
Thread
Thread Starter
Forum
Replies
Last Post
