Proton IAFM Engine
Maybe this is not the right place to discuss on cars and motors, but I would like to share this information with Proton users who have similar problem. I used to search for related information in few car forums. Of course they help with some clues but most of the comments are irrelevant. Therefore, I hope this post helps those who are looking for information about Proton IAFM engine.
Proton has implemented the Integrated Air-Fuel Module (IAFM) technology on their recent products including Proton Persona and Proton Saga. Without any argument, the technology is an advantage in the performance and fuel saving wise.
My family bought our Proton Persona last year and given the chance to upgrade to Campro IAFM engine by adding only RM500. Without second thought, we took the offer. Overall, the car is cool. (except some noise from the dashboard).
After the 10,000 km service, the engine started to make noise. It’s kind of wind sound (like water boiling sound) when the speed reach 110 km/hour. Not only that, when the vehicle slow down after the ‘high-speed’ run (just to describe this scenario..ahem), the sound can be heard clearly too especially when the vehicle started to move.
I started to search in the car forums, hoping that someone is already come out with a solution for similar problem. Unfortunately, no one is having the water boiling sound. However, some of them were talking about the noise from the IAFM. Taking for granted, I assumed the noise is caused by the IAFM too.
So what is next?
Some suggest to replace the IAFM before the warranty end. And one of them suggest to replace the defect modulator which will eliminate the noise.
I sent my Proton Persona for the forth service last week. I told the mechanic what I have read from the forum and requested him to replace the modulator for me. He agreed to replace the modulator but he told me it was definitely not the modulator which causes for the noise.
What cause the ‘wind’ sound from Proton Persona engine?
So far, he did not receive any complaint on the ‘wind’ sound. And while he was testing my car, the noise does not exist because the engine was not exhausted enough I guess. Any way, he suspected it got something to do with the vacuum valve but there are few of them in total. Some more, he did not hear the sound at all, so he neglected my first complaint.
Then how is the noise of IAFM sounds like?
It sounds like the old taxi engine (tak tak..tak tak….) When he stepped on the fuel pedal hardly and I can hear the noise. Then I asked him if I can replace the IAFM? Yes I can, but there are 30 cars on the waiting list. Some of them register for the second time because the noise appear again after it was fixed.
Any way, i decided not to go for the replacement. You know why? When we were in the middle of the discussion, a Proton Saga BLM came and the IAFM noise was so loud. It was clearly heard even with the car bonnet covered. I rather not to take the risk, who knows the noise might become worse later.
If the modulator does not cause the noise, what is it about?
Rather than making noise, it is actually controls the fuel meter. For Proton Persona owner, do you notice that the fuel meter never show FULL even though you have a full tank? Tell the mechanic during your next service and they will replace for you. Make sure your warranty is not end and bring along your car grant (photo copy will do). The modulator cost more than RM400 in the market, wao..
My front right wheel is making noise when the road is not even, what is going wrong?
I hate the first mechanic, he tried to ignore all my complaints by staring at me like he did not know anything. (I would like to clarify that, he is not the one who explain to me about the IAFM and the modulator) I asked for the supervisor instead. This time, he asked me to drive and show him the wheel noise. I drive through some uneven road and he noticed the noise.
But guess what, he declared that he could not find the cause after checking for half an hour. The solution for the ‘wind’ sound and wheel noise is to send my car to the Proton Service Headquarter at Shah Alam. They are just dealer who fix standard problem. Okay, I got it.
If any of you out there who has similar problem and got a solution, please share with me.
I have bought persona H line, since day 1 having an issue like late respond on breaking system even the services include as Electronic Brake-force Distributor (EDB) and Anti-locking Brake System (ABS). There is some other minor problem like (Air cond outlet spoil left hand side and ect… that I never bother. I also found same problem as you facing “My front right wheel is making noise when the road is not even”. I went to few service outlet at rectify this issue, but still unresolved. Lastly I went to Glenmarie (PROTON PARTS CENTRE) one on the mechanic inform me it could be problem on staring rack. He inform me to call proton i.care centre and report to them.
I have call to i.care customer feedback centre, they inform me the issue still under investigating and there is many customer have complaint on this issue but till now haven’t take any action due to their manufacture which is “PROTON” did not provide any solution for them replace the parts. VERY GOOD SERVICE!!! I don’t know when they going to solve this issue, finally I’m decided launch complaint to Hal Ehwal Pengguna e-aduan@kpdnkk.gov.my.
hi guy,i jz booking a b line prsona….haven take yet….but i till vy wori bout the quality….can giv me some comment
hi see toh,
besides the standard local made car issue like dashboard loosing sound, proton persona is still a good car..i have friend who bought one with no issue so far, that’s is his luck..
therefore, if you plan to have one..you might go ahead..petrol saving, power and price wise, i guess it’s a good choice..
if you are unfortunate to have some issue with your proton persona in future, what you have to do is to go to the service center more often..hopefully they could solve the problem for you..
some more, the car has been launched for years..they should have improved the quality for the newer batch..
just my two cents..
hi,noname
thank for your comment…wat u say was true…this car reli value for money.45k got 1.6l engine,family size car and high performance.think tid time proton reli work hard for ti.
Fuel modulator problem as stated above is due to the modulator cannot provide sufficient current to the meter and this only happens to Bosch Modulator.
Basically tak-tak noise is due to 2 problems and both are in Proton Bulletin Recall as I type this.
1) There’re a batch of IAFM is having such noise due to freeplay in the internal mechanical structure
2) There’re a batch of Campro engine’s timing belt pulley giving out similar noise as it’s wobbling when the engine is under load.
Dealer might not aware of this but a Proton Edar SC will quickly identify the problem.
Hi,
I know this post is overdue, but Im so glad to find out there’s someone having the same problem with me! The wind sound really annoys and sometimes quite worrying! So far I dont know what causes the sound. I didnt complaint with SC because the sound is on ’sometime’ basis. uhuh.. if you find out whats the problem.. pls do tell..
hi there Gen2 user, thanks for dropping by at putra permai community blog…
so far, i’m still not able to figure out what causes the ‘wind sound’…but i’m pretty sure it got nothing to do with the IAFM…i have my IAFM replaced two months ago after the SC mechanic confirmed that it was malfunction…but the ‘wind sound’ still exist after that..
i have complained to the SC mechanic but they said i need to book for another slot, purposely to test the car with me…since they claimed that they did not hear the ‘wind sound’ during the testing after service..but i have not do so yet
same to you bro..if so happen that you find out what is the cause, please share with us here…
note: one of my friend said it might be something to do with the compressor
Hi,
I jz got my new persona elegance last week, me also facing the same problem, my front right wheel and dashboard/steering area making flimsy noice when the road is not even. Can anybody advise me what should i do? bring to SC or direct to glenmarie? is there any solution? from what i heard, the technician always give bullshit excuses during complains. i’m planning to send my car for 1st service at Proton SC Bukit Puchong, anybody here got any experience at Bkt Pchong SC?
Wao Jai, the elegance is nice
What a coincident, i service my car at the puchong service center…the industrial area behind the binary college…i guess they are fine…the firm noise at the front right wheel can be fixed…i used to have the same problem too but it is okay now…just tell them the problem during your first service later..
enjoy and welcome to the persona family..
Yup its a very nice car…TQ bro… lucky i dont have any prob with the engine…is luck also…
no problem bro
share with us if you have any other new information about your persona…
Persona or Myvi? which one better, since the price of persona and myvi are almost same.
Please give some advice cause i plan to buy a new car.
hi ant, it’s a very subjective question…
i believe both persona and myvi owners will prefer their choice respectively…
check this link out http://forum.lowyat.net/topic/556814 and you might get some ideas..
hi there.. just got my persona elegance about one month ago.. for the problem that you hear like boiling water, i think it is same like me.. i’ve sent to service centre and do complain about that and they told me it is normal sound due to aircond compressor… and this noise only can be heard when u on your air cond…how about you? do u hear the sound even the aircond is off??
i think it got nothing to do with the aircond..the sound still exist although the aircond is switch off…but the sound will only be heard when the speed is more than 100km/h and even after i have slow down after that..
The new persona elegance really impress me a lot. I was thinking to get one to replace my 14 years old iswara aeroback. But after reading the feedback and issues, I am very disappointed by Proton. After so many years in the industry, such problem “dashboard/steering area making flimsy noice” still exists. Is a RM60k (if H-line) car, Persona shouldn’t have such “local made car dashboard loosing sound” issue anymore.
Secondly, from Mr Amer feedback, persona elegance still have the same problem “hear like boiling water”. So, meaning that persona elegance still inhererit the same problem which happen from previous version persona. Proton NEVER rectify and resolve the problem at all. But just changing side mirror with signal light, rear LED light, skirting, and front grill. so disappointed.
newbuyer – I’m also thinking to replace my 11 years old Isware for Elegance or Saga but after surfing here and there … found out that Proton “Talk More” then “Solve More” … Once U purchase it … then U will be “regular” customer of the SC!
I wondering what are they doing – Engineer – QA/QC – Purchaser ? Playing PSP / Computer / Online game in office ?
Isn’t that they have fully tested it before release the product into market … I suggest those not doing their job – do pls just resign let those who really want to help Proton to grow rather blocking their direction.
i got my persona elegance H-line (auto) 1++ mth ago and its mileage is about 2200km. I had sent my car for 1st 1000km service in Johor Jaya PE SC and used Petronas Semi Synthetic Oil for RM 150.
It’s really a nice car judging from its appearance and pricing, but from performance wise, the handling, fuel efficiency and acceleration is still not as good as Vios/City. I found the engine responded slower than it should be compared to my friend’s Vios. It takes about 5 seconds to accelerate especially after i stopped at the junction. Besides, my engine had dead for twice thus far when my car was idle (free gear, at the traffic light junction) but fortunately i can restart the engine after i switched it on again. The other issue is when my car stopped at the traffic junction which is on the high rise area, my car would still go reverse even though the gear is set at D4. I heard from my friend that Auto gear car are designed in such a way that it won’t go reverse when the gear is set to D. I think i should send my car to SC tml to fix all these problems…
Hi guys,
I bought a persona elegance last month.
Yes it has the “hisssing” sound since my first day, but not while im doing more than 100kmh, it happen when i turned on the aircond. In fact when to the SC in ampang, as usuall they didnt find anything wrong.
Second is the “front right wheel and dashboard/steering area making flimsy noice when the road is not even” this is very annoying as it quite scary when you r driving. Seem like smthing when broken or break. Also when to SC to check on this, again not satisfying answer.
WIll call the i-care and ask them.
daniel, cheaper price for a few second slower…i guess it’s worth
faiq..i’, very interested with the steering sound issue…actually not only the sound, you will feel your steering is loose too when the road is bumpy…for twice i had bring up this issue to SC when i sent my car for service, they claimed that they have change something for me..it’s for the power steering but soon the same issue will occur..
so, do let us know if they are able to solve your problem…
Hello…Got my persona elegance AT briliant red last friday. check thru the car wen collecting it. found tat the gear knob couldn’t change from P to R or D…etc…stucked…changed forcefully n it is like going to break it…then get it dealt with at the SC. but wen bringing it back, cant shift it to P when parking @@. At the same time, the front passenger side door’s lock cant be opened when using remote control. super hard to pull up to open it, again did it forcefully. so decided to go back to SC. Found out something broken in the gear knob, wat kind of QC, wondering in my mind, broken stuff in new car. was told no stock to change it, n they will call me wen there is stock…and wen trying to demo on the lock’s problem, it seemed ok. but it came back wen i reached home. it seemed to come back after leaving for some time. so decided to go back on saturday to get it dealt with. they tot is the button too tight and scrapping off some plastic to try to solve it and was informed if problem remained then it is some mechanical part inside…n today is sunday, it happened again…so surely something is not right…sigh…
n wen pressing on accelerator, during transmission of gear, it seems like it is vibrating during transmission, my feet can feel it wen pressing…wondering if it is something wrong also @@
Hi…sent my car for the 3rd time to SC…gear’s problem resolved, but the lock at the door for front passenger side doesnt seem to resolve…they changed something during the second time but it comes back…today sent for the 3rd…it is really inconvenient to need to send for so many rounds, especially when u need to work…i really hope i wont need to live this kind of new live after getting this car…
I’m driving 2 yrs old blm, 1st IAFM module change was 8 months new car due to tak tak tak sound and was ok until 4 months ago where its back.
I don’t have warranty for my car already, any1 know the price for changing this part ?
I’ve found out that when this problem will lead to high FC.
hi eric, i remember the staff at the service center did mentioned to me before it’s about 1k ++ but i do not know the exact amount…maybe you should inquire at the sc during your next service..
my 10 month persona is giving me headache…..it gave me tak tak tak tak sound all the time…. is it because the iafm module problem?.. going to what so call ‘ centre of excellence’ tomorrow to rectify the problem….
most probably it’s because of the IAFM…they will check for you and advice you to change if it’s defect…
recently my car also come out the “tak tak tak” sound problems, just solve at CHOON SHENG AUTO SERVICE (at bdr putra permai, jlu 3/3). the mechanic told me that is the wheel problems… may be u can try it.
ya,proton car alway got that problems, the wheel problems, tak tak tak sound can be solve at the workshop,but after few mth will come out the problems against, bc it is the car fitting problems, the quality of material problems.
IAFM engine is not suit for all the car to use, bc it is up to ur car power. i heard from mechanic advice, it is not useful and fix it just bring more problem for the car only…