evo7 loud vibrating sound during rain

[putraevolution3]

dear evo 7,8 or 9 owners,

I encounter really loud vibrating sound from while accelerating in the rain..the sound comes from engine bay or the wheel...(im not too sure)...BUT....accelerating same place on dry sunny day...no sound or vibration AT ALL.....

Have u guys encounter this b4?would it be drive shaft??engine problem...4 wheel drive problem?gearbox problem?
Please advise....

damme boring driving in the rain...

 

[greenmivec]

Did you changed the ACD ?

I think i had that sounds too when i change from tarmac to gravel during raining when i drove up to cameron highland...but when i changed it backmto tarmac no more sounds.

I believe it is the ACD

 

[Unregistered]

hey bro...thanks for the advise. let me wait for the rain and try....
i never change the ACD setting before. Always tarmac mode.
But its kinda weird how come the ACD can vibrate violently..............

so bro....are u stil facing the same problem whenever it rains?
or you have send to mechanic to rectify this problem completely?

 

[lalu]

Water splash which may cause the exhaust pipe/flange to rub against the longshaft perhaps? Try to rotate the shaft by hand and see if it touches anything. That if the noise is relative to speed. The long shaft is fine, don't get confused. Just a thought tho.

 

[AlucarD]

My bet is with lalu ;)

 

[madiewaters]

maybe the long shaft..try check first

 

[carent9]

I suspect tht it may be your center box might be spoilt. How long ago was it changed? I found the same problem if I rev hard during rain. But when it is dry, then ok... Gear stick also vibrates like crazy...

 

[rumitech_global]

i oso encounter sama prob, during hard rain my evo 7 will produce scary sound like broken bearing without grease oil... i notice that sound come from below of my evo 7, sometimes i think come from the pulley area in engine bay but sometimes i think the sound come from long shaft or maybe from the 4wd transfer box area....the truth is i dont know where the sound came from.... when in dry whether there will no sound at all, all smooth n clear .....dear cifu please advice what to do.... i encounter this prob nearly 1 year n havent resolved this matter....tq

 

[carent9]

If it is the long shaft, then why not all the time?

 

[putraevolution3]

​

Hmmpphhh..guess

​

like rumitech facing some problem...me worst!!! I face this problem like almost 3 years. Yupp..the weird sound seems to come from pulley engine bay area..or sometimes like from de longsh:..pls advise any sifus who knows abt tis problem...really malu drive in de rain

 

[carent9]

What i faced on my car was tht the center box internals were damaged.. So, when the water hit it, the contraction causes the vibration.. And it feels like gear box got problem.. This happens only when revving above 3k rpm during rain..

 

[putraevolution3]

Hi Carent,

Thanks for the advise...hmmppphh...let me recall...yuppp...pretty similar symptom. BUT only difference my gear stick is perfectly normal...no vibration at all even during rain or sunny day...
pretty weird though..........yeah...when i revv hard in rain...vibrate like hell

BTW, worst case....do u mind sharing how much is the damage ($) to repair or change the gearbox internals?

I wonder...if subaru's faces such problem

 

[kampoon]

Cari Evo XXt maybe he can help..............

 

[ron88]

i encounter the same problem during rain also and even when i stop my car...vibration and squek sound below my gear stick ...i am not sure what is the problem also but i went to my workshop and check....my gearbox oil is leaking....not sure whether is my gearbox or something else.......the vibration and sound comes only when it rains..

 

[rumitech_global]

wah so many ppl having same problem with their evo during rainy day..... i dont think mind have prob with 4wd transfer box coz just replace the gearbox.... if gearbox prob it will make sound everytime and last time happens to me with the whinnningg sound during accelerate... any cifu can help to solve this matter....

 

[madiewaters]

wah so many ppl having same problem with their evo during rainy day..... i dont think mind have prob with 4wd transfer box coz just replace the gearbox.... if gearbox prob it will make sound everytime and last time happens to me with the whinnningg sound during accelerate... any cifu can help to solve this matter....

ur longshaft bro i think.. ur grease in longshaft leak.(maybe)
r u use snow trans in the rains day...

 

[rumitech_global]

will dismantle every single item at my longshaft, perhaps can found the answer .....so mystery

 

[bb1-man]

Whatsup MLOC guys...

I used to have this problem with my DC5 AFTER changing to aftermarket exhaust system ;)

I also didn't manage to fix the issue, but i was told that when clearance between the pipe and the underbody/hook is very small (due to change to aftermarket exhaust or some mods down there), during rain where the pipe gets wet, the metal contracts, and changes in diameter at some points. Even a small difference causes a heavy vibration, and when the metal dries up (after a few kms on dry ground), the vibration disappears.

Some dudes have fixed it by wrapping the pipe all the way with one of those supa-dupa exhaust wraps. Me, i didn't fix.

 

[rumitech_global]

guys,,,,, my evo had exactly the same sound like this during raining................Evo IX Weird sound during rains. - YouTube

 

[clanzkiller]

Oh yeah that's mine.., And I've been looking for the answer for the past 2 years.
Rev or not revving, the sound will appear randomly. Even at idle. So anyone has fixed it?
some said the oem cat converter, but I removed it. Some said the exhaust hook, and I never try it. Some said driveshaft, etc etc.