Question about 2003 Toyota ECHO

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Our car is squeeking when we turn it on or run the air before its warmed up.. we have already changed the belt... any other troubleshooting??

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  • dale blankenship Aug 23, 2010

    Did it briefly get better with the new belt, then return? Or was there no change?
    If it improved somewhat with the new belt, I'd guess the spring on the tensioner pulley is weak, and you need to replace the tensioner pulley assembly. While you have the belt off, check the idler pulley (if you have one). Spin the pulley by hand, it should spin freely and feel smooth when you turn it. If it feels at all rough, its bearing might be wearing out and need to be replaced.

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Either the belt is not tight enough or your airconditioning compressor is low on oil. If the low oil is the problem, you are about to have an expensive problem when the compressor fails. So: be sure the belt is tight enough. If it is, get some oil added to the compressor. It's a special type of oil called PAG oil, by the way, so be sure to get the right stuff.

Posted on Aug 25, 2010

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