to all vios and altis owners...(problem in the car)

[mk]

hi guys...just recently napansin ko may "humming sound" coming from the back ang vios ko..mdyo mahina ito...but audible ito kapag dumadaan ka sa straight or any types of road condition..
and kailangan naka patay stereo mo.
it's not the shocks since pag nalulubakan wala naman weird sound..
meron bang such thing as rear wheel bearing?...ito kasi ang hint ko, bka defective yung naibiga sa aking unit...and one more thing, i noticed that my car's rear drum brakes cover is already covered with rust? (ndi ko na naireklamo since gabi ko na claim car ko, and kinabukasan ko na napansin...by the way mag 1 month na pala car ko..and wala naman lumalabas na ingay sa first 3 weeks...)
question is: kaya ko naisali yung altis owners dahil altis car uses the same suspension set-up (torsion beam) at rear , same with the toyota vios. talaga bang tahimik ito or baka "guni-guni" ko lang yung maingay.
and 1 last question... kun kalawang yung rear drum brake covers...will it cause the car to have "humming sound" noise when running...or wala itong kinalaman?
nagtataka lang ako since may "free rust-proof" binigay sa akin ng toyota, meron pa ding kalawang sa cover ng rear drum brakes.
by the way kapag nag be brake ako...wala naman nangyayari unusual sa brake ko...ok na ok pa naman...

[ozcity]

pards normal lang na may kalawang yung rear drum..
yung bang "free rust proofing" e eto din ba yung sinasabing
undercoating?.kung undercoating nga hindi na kailangan
lagyan yung drum...

1. meron bang such thing as rear wheel bearing?...<< yap meron

2. kalawang yung rear drum brake covers...will it cause the car to have "humming sound" noise when running...or wala itong kinalaman? << walang kinalaman ito baka bearing nga..

experience ko lang since na toyota din naman yung REVO
drum brake din ang problema..sad to say "oblong" naman
yung drum mismo, 1 week palang namin ginamit...anyway
pinalitan naman nila ng bago..

[HBOY]

ano tatak ng gulong mo??? sensya na kung medyo parang off topic.. but some road noise or humming sound can be generated by a lousy set of tires. Especially yung mga NCTs ng Goodyear.... when the tire runs out... it is very audible.. kahit nga bago.. rinig pa rin eh.....

[benchph1]

tires may also be the culprit. goodyears especially the low-end ones can be real noisy.

try swapping ur 4 tires to a friend who has the same tire spec but different brand as urs, and hear the difference.

[odell]

may warranty pa naman sa casa yan right?.

let them do the checking siguro para safe ka..hehe.. my piece lang nmn.

[mk]

good year nct3 175/65 r14 yung tire...
...kun rear wheel bearing, bad trip naman wala pang isang buwan sira na...hehe
sir ozcity....pano mo nalaman na defective yung rear drum brkes ng revo mo?...

[Ungas]

Talagang kinakalawang ang contact points ng brake drums and discs. Lalo na pag matagal itong di nagagamit. But once used, ang maiiwang kalawang ay yung contact area ng mags/rims sa drums. Normal ito, di kailangang mabagabag.

Check your acceleration, di ba sya kinakapos or tope? Our Altis just stopped in the middle of the road after a month of usage; the culprit was a faulty fuel filter located under the rear seats. Madumi daw kaya pinalitan under warranty, funny... how did it happen? I don't know and we didn't bother to dwell on that matter.

[mk]

chineck ko na...ndi naman kinakapos or whatsoever....everything is A-1 except for the noisy humming sound ...
dalawa lang hinala ko...its either the good year nct3 tires...or defective yung rear wheel bearing...pag wala sa dalawa...baka paranoid lang ako...hehehe

[ozcity]

Originally posted by mk
good year nct3 175/65 r14 yung tire...
...kun rear wheel bearing, bad trip naman wala pang isang buwan sira na...hehe
sir ozcity....pano mo nalaman na defective yung rear drum brkes ng revo mo?...

pag press ko ng brake pedal parang pumapalag..biglang
tumataas/bumababa yung pedal..then nung binuksan
sa casa yung isang part ng inner area nung drum e
sunog..then they measure it ..ayun oblong nga..

1 week pa lang ito..mukang factory defect yung drum

[revoGSX]

Originally posted by ozcity
pag press ko ng brake pedal parang pumapalag..biglang
tumataas/bumababa yung pedal..then nung binuksan
sa casa yung isang part ng inner area nung drum e
sunog..then they measure it ..ayun oblong nga..

1 week pa lang ito..mukang factory defect yung drum

ozcity, malalim ba yung biglang pagbaba ng brake pedal habang naka-press ka? .. itong revo gas ..namin eh pag nag-press ako ng brake pedal para mag slow-down eh parang biglang baba ng half-inch to 1inch pero di naman tataas... ganito ba talaga mga revo gas? yung sa revo diesel ng erpats ko di ko na-experience ito..

[HBOY]

hmm.. you might have a leak in your revo.. wala bang tagas sa master cylinder mo??>... i used to experience that in my MB diesel. after i replaced my master cylinder..nawala yung unti-unti nyang lubog after depressing. it might not be evident sa labas ng reservoir na may leak or even on the brake hoses. Yun sa akin.. yung loob ng master cylinder ang may tama.. lumulusot na yung brake fluid dun.

mk, try mo nga magpalit muna ng gulong.. ask a friend to test muna... if the noise disappears with the changing of tires.. then gulong na nga...

my experience with NCT3 and NCT5 are....never mind... i have nothing good to say about those two. hehehehe

[ozcity]

Originally posted by revoGSX
ozcity, malalim ba yung biglang pagbaba ng brake pedal habang naka-press ka? .. itong revo gas ..namin eh pag nag-press ako ng brake pedal para mag slow-down eh parang biglang baba ng half-inch to 1inch pero di naman tataas... ganito ba talaga mga revo gas? yung sa revo diesel ng erpats ko di ko na-experience ito..

pre ganyan din sa akin napansin ko nga...lalo na pag naka
stop then naka brake ka parang bumababa sya ng another half inch..pero ok naman..

iba pa rin yung problem dun sa oblong ang drum..yung
pedal taas baba parang nanginginig at
high speed...dumikit pa nga yung brakeshoe sa SLEX kaya ginawa
namin adjust namin yung brake shoe para lang makaandar
wala pang 1 month yung revo namin

[revoGSX]

ozcity,

reps, thanks sa reply .. kala ko meron problem brake system nitong revo gas namin.. last aug2003 lang namin nakuha.. na-experience ko din yung pag naka-full stop ka at naka tapak ka sa brake pedal eh biglang baba ng mga half inch.. tuwing mag dis-engage ata ang aircon or pagbaba na rpm to 800

thanks..

[OTEP]

mk, why don't you get a second opinion (other than the dealer's) first. Try chieffy. Magaling ang service team nila. Kengkoy pa.

[zildjian]

mk, my vios is now on its 8th month and I beleive its the nct's of goodyear. just turn on the stereo and listen to your favorite music then drive away. when its time to change tires put a non goodyear brand. anyways, the 2006 vios is now fitted with bridgestone tires which is a good move by toyota.

[city]

wheel bearing is a very remote culprit..considering bago pa yang oto mo.....pag ito ang may problema....hindi ka talaga mapapakali....uugong yan....this is a major part.

what you can do is go to a underchassis specialist...servitek, carguard, etc....and have your car lifted and inspected for humming noise...kapag wheel bearing ang problema..kita agad yan ng mekaniko.

[finchy18]

i can hear noise whenever i pass to straight lanes and nice roads.. experience whenever i run 60kph up straight. the more speed the more i hear it.. for me its normal and i think it's just the tires that make sounds.

2nd opinion you get check-up

[OTEP]

Kung hindi naman ganon kalala, huwag mo pansinin. The more you pressure the service station to come up with a diagnosis, baka lalong magkamali-mali pa.

And baka lalo kang magkandaleche-leche kung ipapakalas mo pa ang pang-ilalim ng bagong car mo.

[1D4LV]

good year nct3 175/65 r14 yung tire...
...kun rear wheel bearing, bad trip naman wala pang isang buwan sira na...hehe
sir ozcity....pano mo nalaman na defective yung rear drum brkes ng revo mo?...

ayun ang culprit....goodyear nct3. hehehehe.

[mazdamazda]

naku... notorious nga yang goodyear nct3...

buti na lang ok na ang mga bagong tire products ng goodyear.