How-to: Removing air silencer
12-07-2011, 09:36 PM
#61
2000 x.cab Lariat 4x4
Join Date: Dec 2011
Location: Pauline, SC
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i dunno if i want to do this to my truck or not. theres too much dispute on whether its good or not. god forbid i have to run mid grade fuel. im broke as it is haha
12-11-2011, 05:04 PM
#62
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.
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)
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.
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!
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.
When engineers have a 90 degree air flow turn in an intake system they design a fix so the air makes the turn with the least disruption. It's okay to instal another one that is designed for the same reason. To remove the stock one by rippen it apart is kind dum. It may sound good to you but you took out the reason its there and thats effiency. You might believe the air flows better but it doesn't probably. Looking at the device you can see the funnel design. Air flows best this way. Its just the way it is because its a gas. Redesign, better design is ok. Removing it not what I would do leaving the outer part there.
05-02-2012, 09:17 PM
#66
fseriesforever
Join Date: Apr 2012
Location: Delavan,Illinois
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Love these do it yourself tips and tricks on here, removed air silencer from my 01 5.4 and you can def feel the difference, gonna do the same to my 03 this weekend 
07-13-2012, 04:33 AM
#69
[QUOTE="papa tiger"]
When engineers have a 90 degree air flow turn in an intake system they design a fix so the air makes the turn with the least disruption. It's okay to instal another one that is designed for the same reason. To remove the stock one by rippen it apart is kind dum. It may sound good to you but you took out the reason its there and thats effiency. You might believe the air flows better but it doesn't probably. Looking at the device you can see the funnel design. Air flows best this way. Its just the way it is because its a gas. Redesign, better design is ok. Removing it not what I would do leaving the outer part there.[/
Yes they designed the intake to be efficient, then they took that efficient intake and made it quieter by adding a silencer, thus making the intake a little less efficient. That's why we remove the silencer. Louder, yes, but also more efficient. Same reason you change your stock exhaust to performance exhaust, louder yes, but also less restrictive = more efficient. ?
When engineers have a 90 degree air flow turn in an intake system they design a fix so the air makes the turn with the least disruption. It's okay to instal another one that is designed for the same reason. To remove the stock one by rippen it apart is kind dum. It may sound good to you but you took out the reason its there and thats effiency. You might believe the air flows better but it doesn't probably. Looking at the device you can see the funnel design. Air flows best this way. Its just the way it is because its a gas. Redesign, better design is ok. Removing it not what I would do leaving the outer part there.[/Yes they designed the intake to be efficient, then they took that efficient intake and made it quieter by adding a silencer, thus making the intake a little less efficient. That's why we remove the silencer. Louder, yes, but also more efficient. Same reason you change your stock exhaust to performance exhaust, louder yes, but also less restrictive = more efficient. ?
