Tuesday, March 22, 2011

Noise on my corolla when cold..help please!



Hi every one i have a 9th gen corolla and when i turn it on it makes a knocking noise but goes away after warming up...any ideas? thanks!

Reply 1 : Noise on my corolla when cold..help please!



What's your mileage? You hear it only when driving before it's warmed up? Piston slap noise when engine is still cold is common with the 1ZZ-FE, as does mine.

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