I need your input. How many of you have the " whistle at idle " after installing the Airaid Induction System ? Just for the record, Evergreen Performance ( makers of the Airaid and Poweraid ) was quick to inform me that the Airaid is not called an FIPK. That is what K&N calls their setup.
I installed my Airaid back in the winter and the only times I heard the "whistle" sound was at highway speed. When the hot weather set in I started getting the "whistle at idle" a different and much louder noise ( very annoying ). The slightest touch on the gas and the noise stops. I do not have this sound at cold start up. Only after the engine is hot and then it's 100% of the time.
I am not trying to slam Airaid here. I really noticed a performance gain and think it's a quality built product. It was a nice, neat looking install. When I talked to Evergreen Performance on the phone they said they haven't heard of this problem before. I removed the Airaid system and reinstalled the factory airbox. The noise is gone.
So, before I call them back I thought I would try and get some feed back from you guys and gals. Please let me know what engine you have also.

Thanks in advance !!!



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2000 F-150 XLT Supercab 4x2. Bright red clearcoat w/gold two tone.5.4L, 3.55LS, class III towing, keyless entry, overhead console and captains chairs.
Ford bug shield and vent shades, Ford(duraliner)bedliner, Extang Black Max soft tonneau, Westin platinum SS nerf bars. Hellwig rear sway bar, Flowmaster 2 chamber dual out the sides catback, Airaid( on the shelf for now ) Superchip



[This message has been edited by E mac (edited 07-17-2000).]

 

No whistle with the 4.2. I've noticed that most if not all the whistlers have the 5.4.

 

No wistle here on the 4.6L, try and find a breather element for the valve cover and remove the small hose that goes to the intake tube.

I love this Airaid, I wish I would have bought it right off the bat instead of dinken with the home made air box mods.

They just don't stand up to the stomp and romp I get now.

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99' F-150 XLT 4.6L SC 4X4 ORP LS

- Ariad FIPK
- Superchip
- ASP Underdrive Pulleys
- Accel Coil Packs
- FMS 9MM Plug Wires
- Rapidflow 3" single CatBack exhaust
- Fluidyne Trany cooler
- A.R.E. Hard Tonue Cover
- Duraliner bed liner
- W Bucky Badger Hitch Cover
- Mobil1 5W-30

 

You wistling noise that you hear may just be the sound of air rushing into the filter. It is not silenced by anything, so open the hood at idle and see if that is the noise you hear. If so, that is just how it is. The 5.4 will take in more air than the other engines, so that may be why it is more common with the 5.4s.

 

4.2 and no whistle.

I recall reading something about the gasket
or something where the sensor is installed.
When At Idle check under the hood and feel around wher the sensor is installed as well as check for tightness around the Clamp at all connections.

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Y2K F150 4x4 XL Med Torredor Red
4.2 5 speed,AIRAID, SuperCHIP,
3.55 LS, Leer camper shell, bedrug,
Ranchhand Rover Brushguard 2X Off road lights
Tint/alarm/ aftermarket keyless entry/locks
2m radio, CB, 3 Scanners
regulator@f150driver.com

 

Mine whistles pretty loud at an idle, but I have gotten used to it. Oh well....

5.4v8

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Patrick aka Mudder or MR.Daylighter of Arlington Texas (D/FW), member of the Texas Chapter club DAYLIGHTER edition F150 ®, Black 98 S/S S/C F150 4x4 0RP 5.4 V8 3.55ls, Ramsey Pro 8000 hidden winch, Grizzly roll bar, Superwhite Bulbs, 2 Baja back up lights, 2 KC 57 Series 5x7 100 watt long range lights, 8 165 watt KC Daylighters, 4 chrome, 4 black ( with 10 KC's, I come alive at night), Manik grill guard, Westin step bars, Rhino Taillight guards (thanks Pony), Magnum bug shield, Sonic aluminum treadplate 36" tool box, Flowmaster 40 series dual exhaust, Airaid High Flow system, Edelbrock IAS shocks, 285/75/16 BFG AT/S KO, American Racing Baja wheels, personalized plates, Cobra CB radio with 3' whip antenna, Escort Laser/Radar detector, Nokia cell phone, a Mobil Speed Pass on the back window, a F150 Online sticker, and a DAYLIGHTER sticker on the front windshield, and yes, I also have been infected with the infamous door crack. More to come for the Daylighter: JBA headers, superchip, 4 more Daylighters, and a Lighted Ford tailgate logo. If you would like to see pics, email me at mudder46@hotmail.com or see pics at me and pony's website www.angelfire.com/ok3/ponysix8 , and to hear the Flowmaster exhaust http://www.angelfire.com/ok3/ponysix8/images/T005.wav
Also the Moderator of the Ford Trucks vs. GM trucks forum over on fordvschevy.com so check it out.
Check out the Toughest SOB in the WWF crush the Rock's Lincoln: http://www.amta.net/files/sc-2.avi
OH HELL YEAH!

2 BRT 4U "Go ahead, flash your brights at me, see what will happen."

Got light?




[This message has been edited by mudder (edited 07-18-2000).]

 

Dirt Bike Dave and REGULTOR,
What knid of performance did you get out of the AIRRAID in the 4.2?

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Black 97' F-150 XLT Flareside, 4.2 6 CYL., 5 Speed
Deflecta-Shield lighted visor
ExTang Tonneau cover, Westin Nerf Bars,
GTS hood and window deflectors
Manik 4x4 pushbar, Hyper-Blue Headlights, Lund Shadow Cowl
265-75r-16 Pirelli Scorpions, Tinted Windows
Huge Stereo!, Ford factory alarm and entry
And many More Goodies To Come !!!!!!!!!!!!

 

E mac,

Same exact symptoms as you. Just point Evergreen to these message boards and they will see quite a few people that have experienced this. As anyone from Atlanta can imagine, I sit in non-moving traffic (oxymoron) and listen to that whistle quite a bit. It started when the temperature started to rise here in late-Spring...

Steve

 

Oh, 5.4...

 

4.6 and no whistle

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1997 F150 XLT 4.6L Auto 4x4 ORP SC 3.55LS Oxford white, Med. Graphite Int. White Faced Gauges,Bed Cap,Superchip,AirRaid,Bug Deflector. Rancho RSX Shocks, 3" Flowmaster 40 series,Bassani Nascar Tip. 285/75/16 BFG AT's, 16x8 Centerline 45 series




[This message has been edited by 97F150 (edited 07-18-2000).]

 

I have the K&N Fipk on my 5.4 and tihe whistle is the air rushing through the filter and into the MAF sensor. Seems a little noisier during hot summer weather. Sounds a little like an open carb without air filter. Remember - the air filter and MAF sensor are completely covered and enclosed by stock airbox with purpose of keeping it quiet.

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2000 F150 SuperCab, Short Bed, 4X4, ORP, 5.4L, Auto Trans, 3.55LS, Captains Chairs with power drivers seat, rear slider, class III towing package, remote entry with alarm and just about everything you can get on this truck. Added a Ford bug deflecter, floor mats, a Dynamax Race magnum muffler and 3" mandrel bent pipes, Superchip, K&N FIPK Gen II, Bilstein shocks and Redline Synthetic oil.

 

Ok here is my fix for that annoying vibration that sounded like a whistle...It come from the hose that the silencer box is attached to...My fix was to put 2 hose clamps on the hose before the silencer..I tightened the clamp till the noise went away..didnt affect the performance at all...The silencer box is the L-shaped thing, the left hose from the sensor...Dave

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1998 F-150, SC/Flairside,oxford white 4x2,4.6,auto,3.55s,nerf bars,cls 111 towing,bed liner w/mat,atlas polished wheels w/285/75 R/16 BFG A/Ts (black side out),all plastics guards/bug shields,air raid/k & n filter, superchipped, duals out the back corners, flow master 3 chamber, snug top lid, f-150 online sticker back window-honk if you see me!!! Fabtech 3 1/2 lift .coverking dash cover, Lumi Logo's (front and rear), clear front corner lenses, muth mirrors,3" bullseye spindles, dash mounted CB, (TX Chapter requirement,lol),personalized license plates, Superlift traction bars,Image tail light covers (painted).

San Antonio
DWESSELS89@AOL.COM

 

Thanks for all the great info and suggestions !! I know this issue has been discussed here in the past but I've never seen where anybody found a fix.
I did notice that the noise seemed to be coming from the filter. If the air rushing through the filter is causing it why does it stop when I start moving. Wouldn't that create more air flow and make it even louder? Why does the warm weather make a difference ?
The only reason that I took the Airaid off was Evergreen suggested I do so to see if the noise went away. I will be reinstalling it soon, whistle and all. I didn't realize how much difference the Airaid made until it was gone !

Davensa , I will give the double clamps a try. Thanks !!

It does look like the problem is only on the 5.4

Thanks again everybody !! 6,000 heads are better than one !!! I'll keep you posted.

 

I don't have the whistle but it may be because I noticed a potential problem when installing. There is no gasket between the MAFS and the metal mounting bracket that comes with the Airaid. I assembled the unit and stuck a drop light inside, you could see light almost all the way around. I called Evergreen and they said they didn't make a gasket and had never heard of a problem. I made my own from gasket material. You could also have this same air gap and the noise could be from air going through the crack at low revs. At highrer rpm the air flow would be different and no sound. Just a thought but worth checking.

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98 Nascar Edition, Superchip, Airaid, Flowmaster 70 series, bedliner, in bed tool box, Profile bug deflector and window vents, Class III receiver hitch.

 

5.4L and it whistle but i kinda like it I had some kid in a 5.0L ask me if it was supercharged I just laughed at and lets race you will see he said no

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1999 F150 Bright Red Extended Cab 4x4 Off Road, With Gray Interior, 5.4L, 3.73 Gears,

Add On's for now!
Access Tunnel Cover
Stainless Steel Nerf Bars
Stainless Steel Rocker Pannels
Putco Bed Rails
Clear Turn Signals
Flowmaster Exhaust
Lund Bug Guard
Painted Vent Shades
Painted Taillight Covers
Painted X-Cab Covers
Superchip (in and loveing it)
Airaid FIPK
Red Stering Wheel Cover
Pionneer CD Deck

Wish List: F1 Ram Air Hood, Tinted Side Windows, Wiper Crawl, Viser, Supercharger, NOS, ETC...