2010 xli Engine sound

[tausseef]

Hello Pakwheelers hope you are doing great.
Ok so following is my issue and I would need a serious help.
Car: 2010 Corolla Xli
The car is in Geniun condition and I love it and I dont want mechanics to love it.
Recently I got the front shocks, zlinks and ball joints changed.
Shocks: Agri autos Lahore
Zlink, ball joints: Elahi Autos Montgomery Road Lahore
Also I got steering rack(Kanghi) repaired too.
So next day when I started my car, it was generating a continuous hissssssss sound which increased with the acceleration. The Mechanic checked thoroughly and found nothing. I went to different silencer mechanics, mechanics etc over next 2 days and found nothing. No one was able to locate this hiiissssss like or air leak kind of sound. Then with my usual motorway drive, while I was going to another city, I accelerated the car above 115 and it started to give a chir chir chir chir sound. When i dropped below 105 it was fine. But when i pushed the car above 110 to 120 and beyond the car generated chir chir chir sound. Similar to engine missing sound but not exactly. This behaviour is same from the past 2 months. I scolded the Mechanic. I got the Ac compressor bearing checked, generator, fan belt etc and everything was ok. I came back to Mechanic and asked him to take of the fan belt. Then I drove for 200 meters and the hhiiisss sound was still there.
I went to 2 different mechanics who convinced me that it is the sound of timing chain glides, tensioner, timimg gear( maybe camshaft gear) and chain itself. I went to a different mechanic and got the tensioner and glides changed, as the chain and gear was fine as per the Mechanic.
After a day of hassel and loss of recently changed geniun coolant, the sound was still there.
The continuous hisssss and high speed chir chir chir are still there. The cat converter is fine.
What shall i do? Someone is telling me that it is timming chain gear or pulley.
I used Micking 10 40 fully synthetic oil for 10k before this.
Waiting for expert opinions

[anon36782927]

This post was flagged by the community and is temporarily hidden.

[tausseef]

But what is reason for thus sound

[anon36782927]

This post was flagged by the community and is temporarily hidden.

[tausseef]

Thank you
Any recommendations for mechanics in Islamabad?

[tausseef]

And can you explain this problem a little bit?

[rajaahmed96]

Please don’t use this micking oil next time. I cannot understand what kind of noise is this if you can post video it will be easy to understand. Better use Shell Helix or Total Quartz 5W30. Drain it max at 6-7k kms. Is this a metallic sound?

[tausseef]

Here is the video
The car is being accelerated and speed is increasing from 112 kmph to 120 kmph. Notice a sound starting from 9 secs. Continuous Cchiirr cchhiirr cchhiirrr

The other air leaking kkhhhiiiiissss sound is not in this video. That is very noticeable at lower speeds.
These both sounds started from the very day when I got my suspension work done.

[tausseef]

[rajaahmed96]

Then its something in suspension which is loose or touching something. You need to get your front end opened up all again and check all parts a to z. Don’t believe on these moron mechanics.

[tausseef]

Got checked twice.
If I push the clutch pedal this sound is gone

[rajaahmed96]

Alright confirm if on standy position by pressing clutch in the sound is present if yes then its throw out bearing. Can be pilot bearing too.

[tausseef]

There are two sounds. This high speed sound is not there while car is stationary. It is only there when i push the car at high speeds.
And i removed the fan belt and drove for like 100 meters. The air leak kind of sound was still there. Which increases with acceleration.

[tausseef]

Got check compressor and pulley bearings separately.

[capsat]

@def3nder its here

[def3nder]

Leme share something. Once i have changed my mehran's speedometer wire. And this video remands me that chri chir sound coming from my mehran when the speed went over 70km/hr. It was that speedometer garari which was making that chir chir sound. As soon as i lift up my foot from accelerator it got vanished. But not sure this car might have the same issue.

Do you feel like this sound is coming from the cabin? or outside? secondly did you notice from its coming from left or right?
It mght be any bearing. You need to lift your car from front and rolate its wheel, or do something llike dyno test. so when it makes noise at high speed, you can hear that where its coming from.

Did the mechanic touch anyother thing while doing the suspension work?

[def3nder]

Man, i have seen this video 4 to 5 times, and i am 80% sure its the same kinda sound i had observed from my mehru's speedometer. If its sounds like, coming form the cabin. At the speed of 120km/hr, when u lift your foot up from accelerator. Do you still hear the same sound or it gets vanish?

Get things check with speedometer, accelerator, And everything link it if every other part is checked relating to suspension etc and its working ok.

Also, do check what @rajaahmed96 bhai is saying, Because, we can only tell you the possible things which you can understand by the thread. It can be something else in real. We never know, so good luck

InshaALLAH hope for the best.

[tausseef]

When I lift ny foot then its gone. This sound is only coming at high speeds. Yes local mechanics did a lot of hammerings. All the details of repair work, I have explained in the my first post. Can't say its in the cabin or front hood.
All baerings are working fine.
This same sound was in my 2009 corolla as well.
My xli was soundless car and now I hate it.
2 days of workshops with timining chain open and still i am no where. Timinng chain Glides have been changed. What else now
Some mechinic told me that the computer needs repair work.
But what about the air like sound. I will try to record that too

[def3nder]

When I lift ny foot then its gone. This sound is only coming at high speeds

Bro, then most probably its the same sound i was having from my car. speedometer wire or garari sound. Not sure but wait for any other pakwheeler to comment. and tell you if its the same sound, if yes then please some one guide him to check that in his car. Because, idk how to check that.

My xli was soundless car and now I hate it.

patience bro.InshaALLAh she will be fine

[tausseef]

Tomorrow, if it is possible, i will get the speedometer disconnected and then will check.