Evo X Mystery Squeaking/Squealing from Engine Bay

Bad belt but just as an.fyi we have timing chains.

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What's your milage? Have you changed the drive belt yet? If yes, did you replace the plastic idlers as well?

http://www.motoiq.com/magazine_articles/id/1859/evo-x-tech-tips--february-2010.aspx

swedemix said:

What's your milage? Have you changed the drive belt yet? If yes, did you replace the plastic idlers as well?

http://www.motoiq.com/magazine_articles/id/1859/evo-x-tech-tips--february-2010.aspx

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i been having the same problem! it goes off and on brand new belt.. thought it was old belt , replaced , sound went away and now its back >.<
maybe this will resolve the issue price little steep for that small piece..

If not the belt maybe the pulley that the belt rotates on?

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Did you get any antifreeze on the belt?

Thanks guys

It's the original belt with 55k miles on it so it's probably done.

When we did the cams I remember looking at the pulleys and they were worn

I don't think i got any antifreeze on the belt. It looked dry and I haven't seen any overflow.

Looks like I have to buy a belt and 2 pulleys!

If you get any antifreeze on the belt, it will make it squeak

Capone said:

Thanks guys

It's the original belt with 55k miles on it so it's probably done.

When we did the cams I remember looking at the pulleys and they were worn

I don't think i got any antifreeze on the belt. It looked dry and I haven't seen any overflow.

Looks like I have to buy a belt and 2 pulleys!

Click to expand...

where are you buying the parts from? i might just go ahead and do mine too since i dont know when the last time it was changed

I know STM sells the metal idler pulleys. As for the belt probably mitsubishiparts.net.

Hi guys, I'm facing the same weird sound now. Anyone care to share the cause please?

bump from the grave, any solution. I just encounted this but i have relatively new belt and metal pulleys

zipone said:

bump from the grave, any solution. I just encounted this but i have relatively new belt and metal pulleys

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From the grave again. Same sound. I have replaced the belt. Have metal idlers to swap in but haven't done that yet. Tension is good.

Did you end up with a solution?

So I swapped all the pulley's for metal ones. Still making the sound. Only makes it at 1500rpm and up and generally only when the car is warm. Happens with the car stationary. All the pulleys for other components on the serpentine belt seem good and without play when testing by hand.

Sound is exactly like the video from OP. Anyone know what it is?

Testing with a mechanics stethoscope and with a hose, I heard the sound from the pulley on the water pump.

I finally got around to swapping it out for a new oem pump and the sound is gone.

chetrickerman said:

If you get any antifreeze on the belt, it will make it squeak

Click to expand...

Yep, had that on my other car - Kia with 4b11-like motor as well. I got coolant on the belt and until I replaced the belt, I couldn't get rid of the sound.