Question about 2001 Toyota Echo

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Make noise not all the time but squiky the noise com fron the alternator scho 2000 automatic., Noise some times stars when air condtioned is on or fan on

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Are you in a state where it gets pretty cold in winter?You may have a component in the belt system about to seize up.That happened to me when I lived in NY.I heard a squeak for a while,then 1 day the belt broke.I replaced it,drove about 10 miles and it broke again.My a/ccompressor had seized.You may just need a belt but if you are going to self-repair,draw a diagram of the belt loops and after you take off the belt,turn all components and they should turn slightly freely,yet still kind of difficult,sorry it is hard to explain though.Inspect your belt for many small,slightly widening cracks,or larger cracks,or fraying on the edges.You will not be able to turn the engine belt drive.Good luck! Greg

Posted on Aug 31, 2010

  • Ruhl639 Dec 28, 2010

    On my 01 Echo, I started to get a screehly noise when I turned on the A/C, and it progressively got worst to where I would even got the loud screeching noise when I turned on the fan. Nothing I did worked, resin on belts, replacing belts, etc. Then a strange thing happened, I changed my spark plugs and the noise went away. I still get the occansional screech when the A/C is on and I am stopped, but not all the time like before. I guess it was a power issue. As spark gap increased, the engine had to work harder (increased loading) to produce the spark and the A/C load became too much.

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