Helicopter Sound at 40-50km/hr

[tonyboy]

ask ko lang mga sirs, my car has some sort of "helicopter" sound galing sa harap lalo na pag around 40-50km/hr ang takbo. same case din pag naka neutral at 40-50km/hr and takbo.no noise naman when turning left or right. pina wheel balance ko na and alignment pero same pa rin. brought it sa 2 talyer to have the wheel bearings checked, ok naman daw. tire related na kaya? any ideas? TIA

[lowslowbenz]

Check your tyre wear.

[renzo_d10]

Sabihin ko sana wheel bearing kasi ganyan yung sa FD namin just a few months back, parang may muffler nga. :-) Pero since ok, tire wear mo ang next na icheck mo as said my LSB.

[yebo]

could be the tyre has internal defect, baka napunit at naghiwalay na yung thread sa outer rubber. DELIKADO YAN, HIGH SPEED FRONT TYRE BLOWOUT. pagpalitin mo yung front tyres and rear tyres. kung lumipat ang sound sa likod then yun na yun, internal defect ng goma. kaya may helicopter sound kasi nagcla-clap yung 2 separated rubber parts.

[tonyboy]

thanks mga sir. i'll check the tires and have them rotated para ma isolate din mabuti.

[yebo]

or use your spare tyre. pag nawala then the tyre you remove is defective.

[tonyboy]

kakagaling lang sa talyer kanina, the mechanic did a thorough inspection of the wheels and the tires. ni lifter yung car then pinaandar to check where the noise was coming from. sabi ni mechanic front wheel bearings daw ang culprit since ok naman daw yung tires and wheels. question ko is advisable ba to repack or replace na yung front wheel bearings? may nabsa rin kasi ako na pag sealed type daw hindi na pwedeng irepack? my car is a honda city 2004.

[1D4LV]

kakagaling lang sa talyer kanina, the mechanic did a thorough inspection of the wheels and the tires. ni lifter yung car then pinaandar to check where the noise was coming from. sabi ni mechanic front wheel bearings daw ang culprit since ok naman daw yung tires and wheels. question ko is advisable ba to repack or replace na yung front wheel bearings? may nabsa rin kasi ako na pag sealed type daw hindi na pwedeng irepack? my car is a honda city 2004.

replace na lang.

[tonyboy]

update: front wheel bearings replaced; alignment, balance and rotation done. unfotunately the humming helicopter sound is still there. also kanina medyo na may slight vibration din sa steering wheel na nasabay sa humming sound. help please. running out of ideas and budget.

[renzo_d10]

Sana yun bearing na binili mo binalik mo nalang para refund kasi mali naman mekaniko mo eh.

Yun wiggle balancing lang siguro

[bobzy]

In my own experience the prob w/ the same situation is the velocity bearing. But just make sure na orig or class A yung ipapalit mo kasi in my case after a week of replacement w/ just some bearing, nadurog agad yung bearing grrr! my 2 cents

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[jick.cejoco]

ask ko lang mga sirs, my car has some sort of "helicopter" sound galing sa harap lalo na pag around 40-50km/hr ang takbo. same case din pag naka neutral at 40-50km/hr and takbo.no noise naman when turning left or right. pina wheel balance ko na and alignment pero same pa rin. brought it sa 2 talyer to have the wheel bearings checked, ok naman daw. tire related na kaya? any ideas? TIA

does the sound disappear beyond 50 kph?
did this noise start after an oil change or after hitting something on the road?
are there plastic protective coating on the windshield trim?
are the windshield wiper springs weak?
have you tried replicating the symptoms with the antenna retracted?
is the fuel filler lid loose on its mount?
are the air dams or spoilers loose?
where is the general area the sound is coming from?

[tip_tipid]

there is no way to put back a removed front wheel bearings. the front wheel bearings are hydraulic pressed out and in.
the only way to check the inner tires condition is to have them removed from the wheels and have a look inside.
the outer tire can be checked for balding or roundness.

[dr. d]

update: front wheel bearings replaced; alignment, balance and rotation done. unfotunately the humming helicopter sound is still there. also kanina medyo na may slight vibration din sa steering wheel na nasabay sa humming sound. help please. running out of ideas and budget.

it still sounds like tire problem.
err... how old are your tires? are you the original owner?
if you are not the original owner, is it possible that the previous owner already rotated the tires because he already experienced the helicopter phenomenon earlier before he sold the car....?

[tonyboy]

di ko na binalik panibagong baklas na naman. medyo maraming parts tinanaggal sa front wheels. regarding sa balancing, done that na rin. more of a pulsating hum yung noise. hindi constant but more a low - hi - low - hi yung effect.

[skyflakes]

minsan yung mga bato na pumapasok sa tire thread cause din ng ganyang tunog sir

[jick.cejoco]

is it possible for you to record the noise and post it?

[Buging_King]

hmmmm, Ganyan din sa akin. May humming sound din. After tire Rotation. Pina-check ko na sa mekaniko, ayos naman daw lahat sa front wheels. ANg tinuturo niya ay yung gulong ko na low profile 45 series at lowered yung harap ng oto ko. Kapag daw naka-lowered eh malakas daw talaga ang road noise lalo na sa sementong daan, Unlike sa espalto na maganda ang latag sa kalye, wala akong naririning na humming sound. May nabasa din ako sa net na baka hindi pantay ang kain ng gulong. Kaya nagkakaroon ng road noise

[tonyboy]

UPDATE: replaced all 4 tires earlier and the humming from the front is 90% eliminated. although meron pa rin syang slight hum pero di gaano audible like before. tire related nga.

[tonyboy]

In my own experience the prob w/ the same situation is the velocity bearing. But just make sure na orig or class A yung ipapalit mo kasi in my case after a week of replacement w/ just some bearing, nadurog agad yung bearing grrr! my 2 cents

Sent from my GT-I9100 using Tapatalk 2

sir eto ba yung nasa loob ng CV joint?