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08-11-2005, 08:33 PM
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#1
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Humming noise in car
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Registered User
Join Date: Aug 2005
City: Cuero
State: Texas
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Hello everyone
I was wondering if someone could explain a humming noise coming from under neath my car. Sounds like the trans to the rearend area. When I take off from a complete stop the humming starts. The humming never stops in tell I make a complete stop. I had a mechanic check the fluids in the trans,and in the rearend. They said the fluids where all okay. I had the driveshaft greased and had the brakes checked (just in case) all okay. The car drives normal except for that noise. The gears where changed out about 2 years ago from 3.27 to 3.55s. Any information is greatly appreciated.
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08-11-2005, 08:49 PM
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#2
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Re: Humming noise in car
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Registered User
Join Date: Jun 2003
City: Gulf Breeze
State: Florida
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how long has the noise been going. cuz sometimes if the gears aren't set just right, they will tend to whine a little bit.
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-Tony
'99 cobra 'vert
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08-11-2005, 08:54 PM
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#3
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Re: Humming noise in car
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Registered User
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It just started about 3 weeks ago. The gears where done 2 years ago.
Last edited by fastfreddy; 08-11-2005 at 09:03 PM..
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08-12-2005, 01:07 AM
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#4
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Re: Humming noise in car
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postarama
Join Date: Aug 2003
City: Southaven
State: Mississippi
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Gears can and do whine. My factor gears whine at certain rpms...
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"I'm not driving too fast...just flying too low"
Mine:
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project
-92 bronco 5.slow and 33's
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08-12-2005, 09:36 AM
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#5
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Re: Humming noise in car
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Senior Tech Advisor
Join Date: Jun 2003
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State: North Carolina
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That really sounds more like a transmission noise than a gear whine, I would take it to a reputable transmission shop and get it looked at. One thing you can do yourself that might tell you a little: Pull the stick on the transmission, the fluid should be red, if its brown or black, you have major problems, also smell it to see if it smells burnt. One other thing can make a weird humming noise, check the power steering fluid, if its low, could be the problem.
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 Rick Kilpatrick, AAS Automotive Systems Tech, Alamance Community College, Class of 99. 06 5 speed manual Mustang with Pony pkg : GT Mac Mufflers, true duals with one custom pipe. 2.5" system. GT bumper cover, all installed March 7&8 2006. AFE Stage 1 CAI, Motoblue Underdrive pulley, GT aluminum shifter knob, honeycomb rear blackout panel,and dash kit installed. Roush hood scoop and side window louvers installed. SS taillight trim has been installed, new alum. GT steering wheel installed.
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08-12-2005, 01:26 PM
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#6
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Re: Humming noise in car
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Legacy Member
Join Date: Oct 2003
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does the pitch of the hum change at different rpms? if it were gear whine then the sound will get a higher pitch as the rpms increase.
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"This year will go down in history. For the first time, a civilized nation has full gun registration. Our streets will be safer, our police more efficient, and the world will follow our lead into the future!"
-Adolf Hitler, 1935
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08-12-2005, 03:28 PM
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#7
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Re: Humming noise in car
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Registered User
Join Date: Aug 2005
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no the pitch does not change |
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08-12-2005, 04:09 PM
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#8
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Re: Humming noise in car
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WTF^^...
Join Date: May 2003
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does the noise increase/decrease in speed as you speed up/slow down? does it get worse when you go over reasonable bumps.
Is your car lowered? I would assume its the rear end gears whinning, they can be very annoying.... mine did this... I had to have em redone but dont go there until you have checked other stuff.
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Borla Stinger Polished Catback, JLT Intake, MM FLSF Connectors, MM C/C Plates, H&R Race Springs, IRS Bace, MRT Hood Struts, True Forged Mach 5 18x9 (275/35/18) 18x10 (295/35/18) wheels, Other Mods, My Pics, High Res Pics
400rwhp/380rwtq - Click mods for more info!
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08-12-2005, 08:01 PM
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#9
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Re: Humming noise in car
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F/I and exhaust moderater
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if it is your gears you should have it checked out because gears should never whine especialy when they were put in 2 years ago. if they do then they were put in wrong but your said it just started so thats probably not the case. it is probabaly your U-joint in your driveshaft. if it is not in line just right it will vibrate and humm...and it only moves when your car is moving so that kind of narrows it down. |
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08-12-2005, 08:05 PM
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#10
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Re: Humming noise in car
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Registered User
Join Date: Aug 2005
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State: Texas
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Increases as I speed up and decreases as I slow down. Does not get worse when I go over bumps. My car is not lowered. |
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08-12-2005, 08:07 PM
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#11
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Re: Humming noise in car
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Registered User
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I will double check my U-joints on the drive shaft. Better safe than sorry... |
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08-13-2005, 01:40 PM
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#12
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Re: Humming noise in car
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WTF^^...
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I would say its the gears, if its a high pitched type whine. There is a TSB on v6s with gear whine in 99-02~ its rather expensive to fix so I would just make sure thats it first, check U joint first since its cheap.
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Borla Stinger Polished Catback, JLT Intake, MM FLSF Connectors, MM C/C Plates, H&R Race Springs, IRS Bace, MRT Hood Struts, True Forged Mach 5 18x9 (275/35/18) 18x10 (295/35/18) wheels, Other Mods, My Pics, High Res Pics
400rwhp/380rwtq - Click mods for more info!
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