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Funny sound when reved above 4000 #57757 04/07/02 01:34 AM
Joined: Oct 2001 Posts: 147 Oklahoma City, OK R ry0077 OP Member
OP ry0077 Member R Joined: Oct 2001 Posts: 147 Oklahoma City, OK	I get this high pitched hum at about 4000 rpm's. Any sugestions or thoughts are apppreciated. I only get this when reving not turning or breaking. Thanks guys 2000 CSVT #99 of 2150 Born on Date 9/28/99 17" Fondmetal 6700 on Nitto 450's 215/40ZR-17 PIAA 9006 Ultra Whites Eclipse 5443 deck Pioneer 6867'S all around No Big Mods yet still with warrenty.

Re: Funny sound when reved above 4000 #57758 04/07/02 04:48 AM
Joined: Jun 2001 Posts: 3,419 Conshohocken, PA P PA 3L SVT Member
PA 3L SVT Member P Joined: Jun 2001 Posts: 3,419 Conshohocken, PA	I bet its normal air intake noise (induction howl). My 3L does it, and so does my brother's stock Cougar Duratec (although not nearly as loudly, heh). Especially if you have an open filter - that will make it more noticeable. 1998 Silver Frost SVT Contour born on...8/28/01[/i] American Iron Shootout Radial Tire 2 Class Champion, Cecil County Dragway April 20, 2002

Re: Funny sound when reved above 4000 #57759 04/07/02 04:50 AM
Joined: Nov 2001 Posts: 95 Clifton Park, NY S SVT24V Member
SVT24V Member S Joined: Nov 2001 Posts: 95 Clifton Park, NY	That means you are getting plenty fresh air!!! "It's the little things that count" The Wedding Singer svt24v@yahoo.com ICQ: 3699352 (Contour.org for auth) 00 SVT #555 of 2150 Built 11/24/99 Bought 12/23/99 T-Red/Tan KKM No Resonator Amber Cougar Side Markers Cougar/Focus Antenna Heated Drivers Seat Heated Mirrors

Re: Funny sound when reved above 4000 #57760 04/07/02 05:48 PM
Joined: Mar 2002 Posts: 36 west chester/susquehanna unive... N Neelnug Member
Neelnug Member N Joined: Mar 2002 Posts: 36 west chester/susquehanna unive...	Mine does the same thing when I just rev the engine from idle. It goes away after I pull out. If you open your hood while its making the noise you will feel your air filter resonating. I guess its just the noise of a lot of air going through the filter. I hope someone else has some comments on it. 99 SVT GRN/TAN Clarion w/ Cerwin Vega 5x7's, 10in the trunk. Mods on the way.

Re: Funny sound when reved above 4000 #57761 04/07/02 06:54 PM
Joined: Apr 2001 Posts: 1,367 Jerzee S SVTour98 Member
SVTour98 Member S Joined: Apr 2001 Posts: 1,367 Jerzee	how loud is the hum? can you feel vibration in the car when it does it? sounds like it could be moosing. could be a bad idle air bypass valve. i had mine replaced by ford for the exact same problem. -Dan 1998.5 SVT "Black and Blue" #5292 See here for MOD list. "Washing your car to make it rain does not work."

Re: Funny sound when reved above 4000 #57762 04/08/02 04:28 AM
Joined: Oct 2001 Posts: 147 Oklahoma City, OK R ry0077 OP Member
OP ry0077 Member R Joined: Oct 2001 Posts: 147 Oklahoma City, OK	It is pretty loud. It has been raining here latly so have not had a chance to look. I will check the valve I am still under warranty so they should replace it. Thanks for the input. 2000 CSVT #99 of 2150 Born on Date 9/28/99 17" Fondmetal 6700 on Nitto 450's 215/40ZR-17 PIAA 9006 Ultra Whites Eclipse 5443 deck Pioneer 6867'S all around No Big Mods yet still with warrenty.

Re: Funny sound when reved above 4000 #57763 04/08/02 08:04 AM
Joined: Jul 2001 Posts: 803 London Ontario Canada M mbb41 Member
mbb41 Member M Joined: Jul 2001 Posts: 803 London Ontario Canada	I get a high pitched hum like you describe in both my cars. Sounds the same so I have to figure that it is the tranny gears. Probaly wrong but its a thought. hunter green 96 mystique mtx, sabb side markers deep tints car bra., K & N filter, hyper white low beams, after market fogs, JVC Kameleon head unit, 600 watt amp with 2 10" kicker subs, soon to come new rims New adition 01/11/2002 The original 95SE in Midnight Red all the toys including traction control Fog light mod, lightmoonroof switch from a focus, power antena (still wiring it up) post 98 sail panels, new water pump , Bosch quad plaitnum plugs, and a new Cat.

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