Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > How-to Section > Engine & Drivetrain
Sign in using an external account
Register Forgot Password?

How-to: Removing air silencer

Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 07-15-2008, 04:58 AM   #1
03 F150 screw FX4 lariat
 
Join Date: Jul 2008
Posts: 102
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default How-to: Removing air silencer

1. Disconnect the negitave cable (this will reset the computer to adjust for any increase in air flow which may result from this modification). You will need a 8mm wrench for this.

2. Remove the throttle body cover by removing the three 10mm bolts. (One on passenger side and two on the drivers side of throttle body. Drivers side seen here)
3. Loosen the clamp holding the silencer assembly to the throttle body.

4. Remove the silencer assembly from the throttle body and then remove the two vacuum lines from the silencer assembly near the throttle body (the 2 tubes just below & to the right of the clamp in the above photo)

5. Loosen the clamp holding the silencer assembly to the air box and remove the the silencer assembly.
6. Rotate the silencer assembly so as to expose the intake air sensor and unplug the sensor.
7. the entire silencer assembly can now be removed from the engine compartment.

8. Remove the AB flex connector from the silencer assembly by CAREFULLY inserting a long, thin blade screwdriver between the flex connector and the silencer assembly and carefully separating the two. (Caution should be taken during this step to ensure that the screw driver does not penetrate the rubber flex connector and the mechanics skin!!). This part of the process will take the longest, as the bond is quite good!
9. Using a Dremel tool with a standard cutting wheel, carefully make a cut inside the silencer assembly at the larger end. Be careful not to cut to deep or you may cut the outer housing. (See notes at end of article)
10. Make a second cut around the silencer to facilitate the removal of the silencer.
11. Carefully remove the silencer by grasping and twisting slightly to break the bond of the silencer at the small end. The silencer should just slip out.
12. Using the Dremel tool and a sanding barrel, lightly sand the cut on the modified silencer assembly.

13. Make sure to blow out the assembly to remove any cuttings which may enter the combustion chamber.

14. Apply a coating of black weather strip adhesive to both the inside of the flex connector and the modified assembly and reassemble.

Installation of the modified silencer assembly is the reverse of the above directions. Make sure the intake air temperature sensor is reconnected as well as the vacuum hoses and battery.

Webmaster's note: I performed this without using a Dremel tool. I simply pried and twisted the inner silencer with a pair of needle nose pliers. I have also had one report that you DO NOT need to remove the flexible part of the unit, but rather just need to cut it out from the end shown above.



i did this mod and it was fairly easy and it is well worth it

disclaimer: i did not write this article...i simply wanted to share it with everyone.
Spectrum is offline   Reply With Quote
The Following User Says Thank You to Spectrum For This Useful Post:
albertasfinest (07-02-2014)
Old 07-15-2008, 08:02 AM   #2
Paint it black
5 Year Member
 
blackbetty's Avatar
 
Join Date: Oct 2007
Location: washington dc
Posts: 2,666
Mentioned: 0 Post(s)
Thanked 10 Times in 10 Posts
Feedback Score: 0 reviews
Send a message via AIM to blackbetty
Default

year/engine need to be added...nice find tho
__________________
05 STX SuperCab 4.6L 4x4My truck build up link
Lightly modded 271.5/336.9 (sct)
blackbetty is offline   Reply With Quote
Old 07-15-2008, 05:50 PM   #3
Hobie
 
Join Date: Feb 2008
Location: Texas
Posts: 155
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

or just add a CAI and not only get rid of the silencer but pick up a few extra ponies in the process
__________________
2004 Gray FX4 F150, Leveling Kit, Billet Grille, Hella 500 spotlights, Kicker Sound System, Edge Evo. Programmer, K&N Cold Air Intake, HJD custom Exhaust.
HJDF150 is offline   Reply With Quote
Old 07-15-2008, 11:48 PM   #4
03 F150 screw FX4 lariat
 
Join Date: Jul 2008
Posts: 102
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by blackbetty View Post
year/engine need to be added...nice find tho
the article didnt state the year...but it worked on my 03 5.4l...if you have the elbow like in the article i am sure you have a silencer

Quote:
Originally Posted by HJDF150 View Post
or just add a CAI and not only get rid of the silencer but pick up a few extra ponies in the process
and spend $300 in the process...this mod in cobination with the snorkel mod will act like a cai and is basically free
Spectrum is offline   Reply With Quote
Old 07-16-2008, 02:45 AM   #5
Cowgirl Up
 
SouthrnmudslngR's Avatar
 
Join Date: Jun 2008
Location: San Antonio, Tx
Posts: 61
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to SouthrnmudslngR
Default

Okay so....I know this might sounds stupid but I'm still new to all this stuff. Can someone please explain to me what an air silencer is? How it works? And how removing it and adding a "snorkel" mod is the same as a CAI?
SouthrnmudslngR is offline   Reply With Quote
Old 07-16-2008, 02:54 AM   #6
We'd do it
 
Just call me Sean's Avatar
 
Join Date: May 2008
Location: Orlando,Fl.
Posts: 32,161
Mentioned: 3 Post(s)
Thanked 407 Times in 363 Posts
Feedback Score: 1 reviews
Send a message via Yahoo to Just call me Sean
Default

Quote:
Originally Posted by SouthrnmudslngR View Post
Okay so....I know this might sounds stupid but I'm still new to all this stuff. Can someone please explain to me what an air silencer is? How it works? And how removing it and adding a "snorkel" mod is the same as a CAI?
The air silencer is like a muffler for the air intake. There are baffles to quiet the intake of the air but it restricts air flow in. Just like a muffler quiets the exhaust but is restrictive for exhaust flow out. A snorkel is an extension of the air intake and is usually installed high on the truck for deep water crossings. It prevents water from being drawn into the intake and since it isn't located under the hood it draws in cool outside air. It is totally sealed to the air intake so there are no leaks for water to come in. So removing the restriction and drawing in cool outside air acts like a CAI.
__________________
Quote:
Originally Posted by Early Cuyler
Fights begin, fingerprints are took, days is lost, bail is made, court dates are ignored, cycle is repeated.
Just call me Sean is offline   Reply With Quote
Old 07-16-2008, 03:04 AM   #7
Cowgirl Up
 
SouthrnmudslngR's Avatar
 
Join Date: Jun 2008
Location: San Antonio, Tx
Posts: 61
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to SouthrnmudslngR
Default

Thanks!!
SouthrnmudslngR is offline   Reply With Quote
Old 07-17-2008, 01:49 AM   #8
03 F150 screw FX4 lariat
 
Join Date: Jul 2008
Posts: 102
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by Just call me Sean View Post
The air silencer is like a muffler for the air intake. There are baffles to quiet the intake of the air but it restricts air flow in. Just like a muffler quiets the exhaust but is restrictive for exhaust flow out. A snorkel is an extension of the air intake and is usually installed high on the truck for deep water crossings. It prevents water from being drawn into the intake and since it isn't located under the hood it draws in cool outside air. It is totally sealed to the air intake so there are no leaks for water to come in. So removing the restriction and drawing in cool outside air acts like a CAI.
yes that is what a snorkel is normally referred to as...but on the 97-03(maybe other years too) there is a tube between the air box and the fender well that some people refer to as a "snorkel"
Spectrum is offline   Reply With Quote
Old 07-22-2008, 02:38 PM   #9
crush a little car today
5 Year Member
 
kaboom10's Avatar
 
Join Date: Jan 2008
Location: royal oak, mich
Posts: 1,008
Mentioned: 2 Post(s)
Thanked 5 Times in 5 Posts
Feedback Score: 0 reviews
Default

I found a polished aluminum snorkle replacement for $16 on eBay. Works like a charm.
__________________
2002 5.4L 4wd F-150 FX4
4.88 gears, trans shift kit, 4 link/triple adj coilovers are installed
Hawk/Performance Friction pads w/EBC rotors and stainless steel hoses. LiveWireIS tuned by myself w/SCT Pro Racer Package. and now for my next trick...twin turbos piece by piece.
kaboom10 is online now   Reply With Quote
Old 07-30-2008, 07:59 PM   #10
Junior Member
 
Join Date: Jul 2008
Posts: 4
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

what years and engines are these silencers on? ihave a 99 with the 5.4 and just tore my air duct out and didnt find anything abnormal.

Thanks,
Shawn
shawnjerdon is offline   Reply With Quote
Old 07-30-2008, 07:59 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
4.6L V8 Air intake silencer removal... TxOutlaw Aftermarket Products, Reviews & Installation 36 01-03-2012 01:28 AM
airbox silencer doncreed 2004 - 2008 Ford F150 11 11-15-2009 11:57 AM
my silencer mod feed back skidmarks Off-Topic 1 08-30-2008 04:37 AM
Air Intake Silencer Mod?? ALLSTOTT 1997 - 2003 Ford F150 9 08-11-2008 08:32 AM
air silencer kingranchcoastie 1997 - 2003 Ford F150 4 01-17-2008 05:47 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Join F150 Forum

 

The Mustang Source

All times are GMT -4. The time now is 07:04 PM.


Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.