See related answers, its been asked and answered repeatedly.
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2001 Toyota Echo doesn't have a timing belt.
yes
The Echo has a chain. I tried to get a mechanic to change the belt once, he informed me that it had a chain.
Toyota Echos have a timing chain rather than a timing belt so there is no need to change it.
See related answers, its already been answered
loosen altinator, loosen smog pump, take smog pump belt loose, then take altinator belt over smog pump belt and over fan
There is no timing belt in a 2002 Echo. It has a chain, and there is no service interval for it. If it starts making noises, have it checked out. It could last for hundreds of thousands of miles.
Its a chain drive so no need to worry about anything related to timing belt ;) Cheers
chain
chain
chain