Question about 2004 Toyota Sienna

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Squealing sound every time I start my van

I have a squealing sound every time I start my van (from a cold start). My belts are a year old and I had them checked the last time I had my oil changed (not at the dealership but at an oil change shop) and the mechanic said that the belts were tight. I went to an Auto Parts Store and they gave me a can of belt lubricant and it helped the squealing, but it still makes that noise. If I press on the gas after I turn the van on, the squealing stops too. I don’t know what else I can do to make the squealing stop. I will go to the dealership the next time I need an oil change and ask them, but I’m afraid it will cost me more.

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  • lisacorbett Jun 19, 2009

    I had them check my belts and they said that they were all tight think they didn't check this alternator belt?

  • lisacorbett Jun 19, 2009

    Ok....I will try it....I hate that noise!



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You need to adjust the alternator belt, do adjustment a little bit tightening a bit. this will solve the problem. Or just change a new belt if the belt has crack.

Posted on Jun 19, 2009

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I assume the parts store sold you belt dressing not lubricant. If that is the case and it helped somewhat then you do need an adjustment the belts. Oil change shops don't always employ certified mechanics. You don't need to go to a dealership for the fix just a reputable repair shop. Check with your local BBB, if you have one, or AAA for a referral.

Posted on Jun 19, 2009


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