Best way to stop belt from squealing at first startup?

[brg88tx]

I'm on my 3rd or 4th belt on my 2007 yaris with 125k miles on it. The problem i have is the belt squeals on cold starts. In the past i would keep tightening the belt, but then they eventually snap from the tension. Besides tightening, are there any other options to stop the belt from squealing on cold starts? Thanks

[SirDigby]

clean belt with belt dressing and toothbrush. also, overtightening belt will cause a squeal. needs to be at proper toughness. not loose, but not too tight. also check pulleys for binding/wore out-ness

[brg88tx]

Thanks for the reply....after researching a little more i found this posted in another thread here. I was skeptical at first, but this actually works.....no more squeal!!!

https://www.youtube.com/watch?v=HRrVMtyIqIY

[SirDigby]

wow! that's a great video. I never knew. I always have started my cars slow. I usually let it sit in the "on" position for 3-5 seconds so the fuel pump primes and computer runs checks before starting. very interesting information here...

[dave mac]

The guy on the 'Carquestions' video is exactly right, I tried what he said and no more squeal. Simple, just hold at "run" for an extra second before turning the key all the way to start.

[KimmoKekki]

Keep belt tight enough and use only TOYOTA ORIGINAL !!!

[Bluevitz-rs]

Thanks for the reply....after researching a little more i found this posted in another thread here. I was skeptical at first, but this actually works.....no more squeal!!!

https://www.youtube.com/watch?v=HRrVMtyIqIY

That's neat! Ok, now someone has to do an experiment with a volt meter hooked up and see if there's a difference in the charge that battery is getting if you start it quick vs. staring it slowly.

[IllusionX]

Wife always starts right up, never had issues with her Honda for 14years.

My Echo actually did not like it once or twice, so I keep it a habit to wait a few seconds before starting.

Not how you don't have a choice with push button start. :)

Sent from my SM-G930W8 using Tapatalk

[malibuguy]

Huh...ima have to try this.

Mine squeals often on start up. Nowhere near as bad in the video. Ive probably been thru 5 belts way sooner then needed.

Ill have to pay attention how fast I turn the key