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Echo's made after 1999 have timing chains. The chain should only be replaced when a rattling is audible. If you hear a chirping noise, it is most likely coming from the drive belt or water pump. The drive belt should be adjusted or replaced and bearings lubricated. In general the drive belt and water pump are replaced at the same time, and should be good for at least 80,000 miles.

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17y ago

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