undercarriage squeaking sound

[speedster]

 :confused1:not sure what is a light weight pulley. kinda noob when it comes to car. still young and learning. :x btw my belt is also around 12000km. changed it at my last servicing. do you tink spraying wd40 on the belt will help?

[kanzo]

The workshop did not tightened the belt coz it's new. They give a bit of slack. But my lightened crank pulley giving a vibrating noise when light throttle. But I have no time to check yet.bro Customgolf> how long have u been using the lightened pulley. I heard some forumer say lightened pulley might cause  damage in lOng run. I wonder if it's true

[hwlee]

Guys, just do a few test below... heard carefully either the squeaking sound occurred when:
1) engine just started?
2) A/C turn on and turn off?
3) car stopped or running?
4) car over the hump?

[CustomGolf]

The workshop did not tightened the belt coz it's new. They give a bit of slack. But my lightened crank pulley giving a vibrating noise when light throttle. But I have no time to check yet.bro Customgolf> how long have u been using the lightened pulley. I heard some forumer say lightened pulley might cause  damage in lOng run. I wonder if it's true

Light weight pulley has been in the ride for about 4 years, some original pulleys comes with what is known as harmonic dampener which dampens the vibration of the camshaft when the fuel detonates in the combustion chambers. Not too sure about the effects on the long run because I'm not sure if our original pulley comes with the dampener.

[hwlee]

:confused1:not sure what is a light weight pulley. kinda noob when it comes to car. still young and learning. :x btw my belt is also around 12000km. changed it at my last servicing. do you tink spraying wd40 on the belt will help?

You better don't do that to the alternator belt...else if the belt slip out from where it located, your car breakdown on road 

[tchekchuan]

I think you are referring to Lok Yang, not Loyang .. it is a HUGE difference though the name are almost similar.

I went to Lok Yang TCM Autoclinic, i dont quite like their service there. I think is either their parts are recycle or they did nothing to your problem.

I went twice with similar problem (hissing sound) from the aircon, within 1 week the problem appears again.

totally give up there!

I will bringing it in on 1st Feb to TCM at Loyang but heard from my colleague that technician there not as experience as those at Kg. Ubi...no choice for me thou cos that is the nearest place for me from work...if not have to take leave to do servicing..

Just to clarify mine is not so much a hissing sound but more like a high pitch ringing from the undercarriage.. its not audible when the windows are wind up but I found out only when I wind down my window to reverse..

[kspchew]

I think you are referring to Lok Yang, not Loyang .. it is a HUGE difference though the name are almost similar.

I went to Lok Yang TCM Autoclinic, i dont quite like their service there. I think is either their parts are recycle or they did nothing to your problem.

I went twice with similar problem (hissing sound) from the aircon, within 1 week the problem appears again.

totally give up there!

Totally agree, the service standardard at Lok Yang sucks

[MadMatty]

Send my ride in for servicing and complained to them about the ringing/vibrating sound from undercarriage. Action taken was to tighten exhaust joint thou honestly I don't know if this is really the problem. Can only keep monitoring and listen out if sound still there.

Btw anyone who wants to send in to TCM for additional works better check and make sure they really did it. Cos I requested for leather care after servicing but when I went to collect the car, it was pretty obvious they did not carry out the job. To think that I even paid up. Immediately look for the SA and he called the people in workshop over and they claimed they overlooked this aspect. This occurred in the Lok Yang center.

Incidentally I changed my belting at 40k but each time I start car in the morning, can hear a screeching sound. Seems like they did not tighten the new belt. Complained about this too and finally they did it. Now I just finish my last free servicing and honestly thinking whether I should continue with TCM or look for other workshop cos I heard that over at Toh Tuck there are a couple of them that are staffed by ex TCM mechanics and charges are cheaper.

[kelvin]

that was the noise from the drive belt ,not tight enough causing it to slip when crank.

i heard a loud squeak when starting the engine too. it is just after you crank and the start of the engine there is a split second of loud squeak?