2011 Accent AT - Engine Knock!

[dopamine101]

yung kapatid ko nga hindi OC pero nadinig nya yang engine knock. hindi sya aware sa engine knock ng Accent kaya sa akin tinanong kung ano yung tumutunog.

[Peaches]

travelling at 20-40kmp won't bother me. this was when i first heard the grinding sound esp. during 1st and 2nd shift. i didn't bother and ask casa to check. but if you're travelling 80 kmp with your kids behind you and you hear this... hindi na siguro OC ang tawag duon.

Sir, i also here yung grinding sound na to parang sa ilalim galing e.. AT unit ko, same din when changing gears from 1st to 2nd ko madalas marinig.. eto na ba yung knocking? I'm one of those people na di gaano familiar sa tunog ng katok e.

[WalterBishop]

Sir, i also here yung grinding sound na to parang sa ilalim galing e.. AT unit ko, same din when changing gears from 1st to 2nd ko madalas marinig.. eto na ba yung knocking? I'm one of those people na di gaano familiar sa tunog ng katok e.

yes madam, yun kataktaktak na sound na parang bearing as describe by sir bratski, ganyan din grinding sound na sinasabi ko. nun unang pina check up ko sa casa, sabi nila axle lang pero nun bumalik, sabi ng SA ko mukhang sa makina daw talaga nag sisimula ingay. kung may ilalabas ng ecu update ang HARI this january, i will advise you to wait for that and observe first sa magpapa replace kung talagang maso solve nila yan problema na yan without resulting to low power. pag tiyagaan mo muna yan....hwag ka munang mag pa update or replace ng ecu.

[Peaches]

yes madam, yun kataktaktak na sound na parang bearing as describe by sir bratski, ganyan din grinding sound na sinasabi ko. nun unang pina check up ko sa casa, sabi nila axle lang pero nun bumalik, sabi ng SA ko mukhang sa makina daw talaga nag sisimula ingay. kung may ilalabas ng ecu update ang HARI this january, i will advise you to wait for that and observe first sa magpapa replace kung talagang maso solve nila yan problema na yan without resulting to low power. pag tiyagaan mo muna yan....hwag ka munang mag pa update or replace ng ecu.

pareng walter, sir po ako. :D. anyway, tinamaan na pala ng knocking unit namen weeks ago ko pa kasi naririnig yun i thought ibang issue. well kanina galing din ako casa sa global, confirmed na din nga na knocking..they said HARI will be visiting them on Wednesday and advised me to have my car checked again ng mismong techncians nila. still i'll follow your advise sir, antay na lang ng final and sure update nila. thanks. :D

[bratski]

sir nag Update ng ECU nawala knocking sound? so ECU talaga may Topak, hindi engine? so dapat palitan nalang ng Casa yung ECU mo...

Yes nag update ako ng ecu ko so wala nakong knocking. Pero ang kapalit ay low power, as in very low power parang scooter engine lang nakakabit sa kotse ko.

Eto summary ko sa mga accent units sold in the PH. 2 klase lang yan:
1. Units that havent been updated yet and has slight knocking or
2. Units that ecu has been updated before being sold so low power na to begin with

Ngayon ang scenario is that owners ng "2" hindi magrereklamo ng low power yan dahil pagkalabas palang ng casa low power na unit nila, so wala silang comparison. Iisipin nilang ganun lang talaga power ng accent.
At yung mga owners naman ng nasa "1" makakrinig ng knocking at magrereklamo. Yung iba pababayaan lang. And contrary to what others are saying na walang "knocking" ang units nila. I beg to disagree na hindi lahat affected. Eh parepareho lang ecu nating lahat at iisa lang settings niyan,Iisang batch pa. so impossible na may makalusot sa either knocking or low power issue. Dagdag ko lang sa kaalaman ng lahat na ang engine knock is not literally kumakatok ang makina, others will describe it as grinding sound, or parang may cement mixer na naghahalo ng marbles sa loob ng makina at high speed, or katakatak or pinging sound.

I bought my accent last May and has been plagued by knocking since then, Ive been going back and forth sa casa to fix the problem but they wont update my ecu for fear of my engine going low power,casa only updated my ecu last october because i couldnt take it anymore, so you could say that i have been knock free since october but my engine is now on low power mode since then. And up to now im still waiting for my ecu replacement.

[3GEMS]

Yes nag update ako ng ecu ko so wala nakong knocking. Pero ang kapalit ay low power, as in very low power parang scooter engine lang nakakabit sa kotse ko.

Eto summary ko sa mga accent units sold in the PH. 2 klase lang yan:
1. Units that havent been updated yet and has slight knocking or
2. Units that ecu has been updated before being sold so low power na to begin with

Ngayon ang scenario is that owners ng "2" hindi magrereklamo ng low power yan dahil pagkalabas palang ng casa low power na unit nila, so wala silang comparison. Iisipin nilang ganun lang talaga power ng accent.
At yung mga owners naman ng nasa "1" makakrinig ng knocking at magrereklamo. Yung iba pababayaan lang. And contrary to what others are saying na walang "knocking" ang units nila. I beg to disagree na hindi lahat affected. Eh parepareho lang ecu nating lahat at iisa lang settings niyan,Iisang batch pa. so impossible na may makalusot sa either knocking or low power issue. Dagdag ko lang sa kaalaman ng lahat na ang engine knock is not literally kumakatok ang makina, others will describe it as grinding sound, or parang may cement mixer na naghahalo ng marbles sa loob ng makina at high speed, or katakatak or pinging sound.

I bought my accent last May and has been plagued by knocking since then, Ive been going back and forth sa casa to fix the problem but they wont update my ecu for fear of my engine going low power,casa only updated my ecu last october because i couldnt take it anymore, so you could say that i have been knock free since october but my engine is now on low power mode since then. And up to now im still waiting for my ecu replacement.

so affected pala lahat ng accent? or yung batch nung sa inyo lang? dapat kung alam na ng casa my ganyang issue dapat hindi muna sila magbenta ng accent... kawawa mga buyers...
dapat ata pa media niyo para aksyonan agad ng hyundai yan..

sorry ha pero parang pag bumili kanang accent parang bumili ka ng batong pupuk mo sa sarili mo..

[nokianitrox]

Well, basta yung sa akin I can report na walang issue ang nakuha ko believe it or not and I'm thankful to that. Possibly a good number of units "may" have this issue but we can only just speculate and such does not mean that "all" accent rb have this kind of problem. I can only speculate also that owners that do have these issues sour grapes saying "all" accent is haunted by problems. Anyway I don't want to add insult to injury and I also pity owners out there that do have issue.

All I'm saying is that no one can safely say that "all" accent rb have problems unless they can provide enough proof and backed by 100% numbers.

Prospective owners out there, don't be afraid to get the accent. Maybe just get the M/T model to be on the safe side.

I love driving my new accent - decent fuel economy and fun to drive. Now I'm looking at buying the Tucson naman

[getafix]

I've been reading this thread and it is obvious that the engine knocking issue is a cause for concern. I am planning to buy 1.4 A/T Accent in the next 2 weeks, and would like ask anyone here if the Accent that is being sold now is the 2012 model. Baka naman kasi hindi affected ng knocking issue ang 2012 model.

[bratski]

Well, basta yung sa akin I can report na walang issue ang nakuha ko believe it or not and I'm thankful to that. Possibly a good number of units "may" have this issue but we can only just speculate and such does not mean that "all" accent rb have this kind of problem. I can only speculate also that owners that do have these issues sour grapes saying "all" accent is haunted by problems. Anyway I don't want to add insult to injury and I also pity owners out there that do have issue.

All I'm saying is that no one can safely say that "all" accent rb have problems unless they can provide enough proof and backed by 100% numbers.

Prospective owners out there, don't be afraid to get the accent. Maybe just get the M/T model to be on the safe side.

I love driving my new accent - decent fuel economy and fun to drive. Now I'm looking at buying the Tucson naman

A/t or m/t ba ang unit mo? Swerte mo at hindi ka kabilang sa majority na wala ng knocking wala pang low power. As I've said, dalawa lang naman ang classification ng accent dito, either low power or may knocking. Yung akin may knocking for the first few months of ownership. Ngayon knock free ang accent ko dahil pina update ko ecu, but at the expense of low power. I can gas up even 93 octane and my unit wont knock, pero low power. Kinausap ko rin yung SA ko and ang sinabi niya sakin sobrang dami na daw nagrereklamo, pero wala silang magawa dahil wala pang solution. Pag pinalitan ecu ko mawawala low power pero babalik knocking. Baka yung unit mo was already updated when you got it.
Ang original ecu programming ng accent malakas talaga humatak, parang 1.6 ang engine mo, pag na update na siya humihina na parang 1.3 nalang (parang yung corolla na big body with the 1.3 engine). Ganun ka hina.

[WalterBishop]

pareng walter, sir po ako. :D. anyway, tinamaan na pala ng knocking unit namen weeks ago ko pa kasi naririnig yun i thought ibang issue. well kanina galing din ako casa sa global, confirmed na din nga na knocking..they said HARI will be visiting them on Wednesday and advised me to have my car checked again ng mismong techncians nila. still i'll follow your advise sir, antay na lang ng final and sure update nila. thanks. :D

sorry pare, hopefully yun balitang may parating na bagong ecu update ang HARI ay ma resolve na ang issue na to'. the sound will also appear when you're traveling 80-100kmp on an inclined road, like in skyway, sa makati going to airport and vise-versa ko madalas ko marinig yan. somebody posted his advice to those with grinding sound na hindi pa nag papa update ng ecu. try to change your gas with higher octane like xcs or v-power. in his case nawala daw ang tunog. i never tried this kasi nakapag update nako ng ecu when i saw his post.

[bratski]

sorry pare, hopefully yun balitang may parating na bagong ecu update ang HARI ay ma resolve na ang issue na to'. the sound will also appear when you're traveling 80-100kmp on an inclined road, like in skyway, sa makati going to airport and vise-versa ko madalas ko marinig yan. somebody posted his advice to those with grinding sound na hindi pa nag papa update ng ecu. try to change your gas with higher octane like xcs or v-power. in his case nawala daw ang tunog. i never tried this kasi nakapag update nako ng ecu when i saw his post.

I dunno about that one. Kasi ako kahit blaze na karga ko (100 octane) nag naknock parin. Ngayon after the update wala ng knock kahit 93 octane lang. Magdusa nga lang ako sa low power.

Paging mexophilia and jayrb, kumusta na mga accents niyo?

[rbc.cerulean]

Unit ko acquired april odo 8k matic. My ecm got replaced 1st week of january sa hyundai alabang so far so good laki ng difference ng power compared nung nag update sila sa ecm ko nawala nga ung knock intermittent low power naman.performance nya bumalik sa dati when I first got the car.unang apak pa lng ramdam ko kagad parang gumaan ung kotse sarap na ulit drive.fc nag improve din.no knocking hopefully wala na tlga.

[Retz]

Unit ko acquired april odo 8k matic. My ecm got replaced 1st week of january sa hyundai alabang so far so good laki ng difference ng power compared nung nag update sila sa ecm ko nawala nga ung knock intermittent low power naman.performance nya bumalik sa dati when I first got the car.unang apak pa lng ramdam ko kagad parang gumaan ung kotse sarap na ulit drive.fc nag improve din.no knocking hopefully wala na tlga.

swerte mo bro at na replaced na ECU mo. hopefully this will totally solved the knocking and low power issue.

[maxhedrum]

Ang weird nitong engine-knock na issue. I mean, ba't pag pinapalitan yung ECU eh nawawala pero babalik rin. Hindi kaya me fuel saving parameter itong ECU na continously na-uupdate until finally hindi na match sa fuel parameters ng Pilipinas?

Kawawa lang yung HARI dahil mukhang di sila tinuruan ng mga koreans kung paano i-adjust yung mga settings ng ECU. Or is it because of their lack of initiative to be trained in this area!?

Unit ko acquired april odo 8k matic. My ecm got replaced 1st week of january sa hyundai alabang so far so good laki ng difference ng power compared nung nag update sila sa ecm ko nawala nga ung knock intermittent low power naman.performance nya bumalik sa dati when I first got the car.unang apak pa lng ramdam ko kagad parang gumaan ung kotse sarap na ulit drive.fc nag improve din.no knocking hopefully wala na tlga.

[erj22]

i concur with sir maxhedrum. para sa akin, coded naman yan eh. di ko alam o nakikita pa ang ECU update o ano ang laman niyan pero ini-input din mga settings niyan at ise-save as a firmware.

[NighthawkGT]

looks like the ECU of the accent are self/auto learning and adjusting. So there's no use to revert the settings back to factory setting where after a while it learns again and goes back to its old ways. The only solution is that to find the root of the problem that is causing the ECU to learn that part of the parameters and produce engine knocks. The newer ECU's have a very complex algorithms for self adjusting and self learning. Its the only way for the car manufacturer to cater to a huge market. no more need of tuning, the ECU tunes the engine by itself from sensors. Take note, these engines are being designed in first world countries with first class fuel. The programmers of the ECU have this kind of fuel as a baseline. and tries to squeeze as much power from the small engine using engine timing, and ignition timing. if you have the perfect fuel then its perfect. too bad here in the philippines we have crappy fuel standards.

[s10pao]

The programmers of the ECU have this kind of fuel as a baseline. and tries to squeeze as much power from the small engine using engine timing, and ignition timing. if you have the perfect fuel then its perfect. too bad here in the philippines we have crappy fuel standards.

parang may mali ata dito. usually kasi ung worst case condition ung dapat baseline mo sa pag-design. kasi wala naman talagang perfect na fuel eh kahit nasa 1st world countries. so usually maglalagay ka ng tolerances sa design mo para ma-ensure na gagana sya on almost ALL conditions or practical scenarios.

for example, kung sinabi ko sa manual na 93 octane ang minimum na recommended fuel, dapat ang design nila may tolerance na hanggang -3 ng recommended (90~92 octane) maayos ung peformance ng car nila.

ngayon kung talagang "perfect fuel" ang baseline, dapat di na ni-release dito yang particular model ng accent na yan kasi alam naman ng HARI na hindi kagandahan ang fuel quality dito. naiintindihan ko rin na baka dun sa intention nila na ma-achieve ung best fuel economy, ung perfect fuel ang baseline nila, para ma-market na fuel efficient ung accent. pero again laging may compromise sa pag-design between best performance and actual performance. the least that they could have done is to test this model of accent for a period of time using our fuel and check if performance of their accent will not suffer due to the fuel quality.

may balita ba tayo kung sa ibang bansa na-encounter na rin itong knocking issue.

[bratski]

Unit ko acquired april odo 8k matic. My ecm got replaced 1st week of january sa hyundai alabang so far so good laki ng difference ng power compared nung nag update sila sa ecm ko nawala nga ung knock intermittent low power naman.performance nya bumalik sa dati when I first got the car.unang apak pa lng ramdam ko kagad parang gumaan ung kotse sarap na ulit drive.fc nag improve din.no knocking hopefully wala na tlga.

Ang swerte mo bro, papano ginawa mo at napapalitan mo yung ecu? Ilang months ka nag antay? Share your secrets naman

[mda]

If confirmed via different part number, then this could be the resolution to the accent's problem.

Kung same part number, either it's a reflash lang or babalik yung problema.

[CVT]

Hanggang ngayon ba, mayroon pa bang ganyang problema???...

Gising HARI!

14.6K:dj: